HK P11: NATO's Secret Underwater Pistol

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0:00 Introduction and History of Underwater Firearms
0:55 Engineering Challenges and Russian Underwater Firearms
2:07 Development, Adoption, and Global Usage of the H&K P11
3:36 Examination of H&K P11: Fired Barrel Cluster and Firing Mechanics
5:24 Unique Features of the H&K P 11: Silence and Sealed Sabot System
7:45 The Electrical System and Battery Compartment of the HK P 11
8:42 Web Gear and Standard Load Out for the H&K P11
9:24 The Secrecy Surrounding the H&K P11
10:16 Conclusion and Acknowledgements
Developed by Heckler & Kock and adopted by the German army in 1976, the P11 has become the de facto underwater pistol for all NATO militaries. It is an electrically-fired pepperbox style pistol with five barrels. Each barrel is preloaded and the barrel clusters are easily swapped - and must be returned to H&K for reloading. Two different types of ammunition are made; DM91 bullets for firing in air and DM101 flechette darts for firing underwater.
Many thanks to Andy at H&K for inspiring me to do this video, and to the British Royal Armouries for giving me access to this P11 to film!
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  • @Tornado1861
    @Tornado18618 ай бұрын

    Ian is piecing together his Atlantis Brutality kit. I can't wait to see him duel wield a brace of these while going after an underwater spinner.

  • @bodyno3158

    @bodyno3158

    8 ай бұрын

    Must be the lionfishes

  • @ChA0s_AgeNt

    @ChA0s_AgeNt

    8 ай бұрын

    He gonna geddit...?

  • @FUBBA

    @FUBBA

    8 ай бұрын

    Calico and G11 with Soviet Spear rifle

  • @doped1able

    @doped1able

    8 ай бұрын

    Mer-Man from Polenar gets a trident, pic-rails all the way is too heavy. Mer-Bloke steals the win.

  • @ROBERTN-ut2il

    @ROBERTN-ut2il

    8 ай бұрын

    @@bodyno3158 No it's the Tiger Sharks

  • @CuteKiller313
    @CuteKiller3138 ай бұрын

    @3:57 this gun must have technically the longest reload time ever if you have to mail the barrels back to the manufacturer to reload them for you and then mail them back to you to be ready to fire again

  • @claudiodominguez.

    @claudiodominguez.

    8 ай бұрын

    You would need lots of DGS to wait for delivery. Does UPS deliver under water ?

  • @oddctioum

    @oddctioum

    8 ай бұрын

    you just know that technically this gun shoots 120 shots or more per second on paper. but practically its exactly as you say. and you didn't even mentioned the electronic Trigger machanism that comes with its own baggage.

  • @Gurkenkasper

    @Gurkenkasper

    8 ай бұрын

    @@oddctioum Hallo!?

  • @oddctioum

    @oddctioum

    8 ай бұрын

    @@Gurkenkasper kotz dich aus Gurkenkasper. nur redenden Menschen kann man helfen.

  • @Nightdare

    @Nightdare

    8 ай бұрын

    Hell at least this is sent to Germany, back when people were still using film to make pictures, we had to send our rolls to the developing countries

  • @fainterdot
    @fainterdot8 ай бұрын

    The fact that the HK greyroom doesn’t even have them really shows how sneaky and covert the pistol is

  • @TheInfidel_SlavaUA

    @TheInfidel_SlavaUA

    8 ай бұрын

    well that ship has sailed i guess ^^

  • @SeanCMonahan

    @SeanCMonahan

    8 ай бұрын

    ​@@TheInfidel_SlavaUAWouldn't a submarine be more fitting? 😅

  • @Taistelukalkkuna

    @Taistelukalkkuna

    8 ай бұрын

    They have plenty of them. They are just so sneaky you can´t see them.

  • @dembro27

    @dembro27

    8 ай бұрын

    Maybe it's in their Blue Room. 🤔

  • @shooteveryday1841

    @shooteveryday1841

    8 ай бұрын

    @@SeanCMonahan literally. These would certainly have been (and currently?) used on SDV’s alongside a suppressed Mk23.

  • @applechocolate4U
    @applechocolate4U8 ай бұрын

    Retaining the sabot to suppress the gun is some ingenious engineering

  • @alun7006

    @alun7006

    8 ай бұрын

    I think there are some Russian cartridges that use a piston type system to similar effect. Completely contains the firing gasses so no muzzle report. Very clever.l!

  • @Tunkkis

    @Tunkkis

    8 ай бұрын

    There's also a German recoilless launcher that uses the same principle, the Armbrust and its further development, the Matador. What makes them interesting, is that they seal both ends of the tube.

  • @hanelyp1

    @hanelyp1

    8 ай бұрын

    Extremely effective, but not a mechanism I see scaling to higher ballistic performance.

  • @livingcorpse5664

    @livingcorpse5664

    8 ай бұрын

    @@alun7006 Yep, they go by a few names like captive-piston rounds.

  • @jeromethiel4323

    @jeromethiel4323

    8 ай бұрын

    @@alun7006 I was going to post this very comment. Sneaky fucking Russians! ^-^

  • @ajhoward8888
    @ajhoward88888 ай бұрын

    I remember seeing this gun in an illustrated firearm book in my middle school library. Lit my young brain on fire with the idea of nato frogmen having underwater gun battles with underwater terrorists (and possibly sharks). So I've been waiting for this one.

  • @paulparsons2085

    @paulparsons2085

    8 ай бұрын

    Saw that too. Think it was a blurb about Italian Frogmen.

  • @romgl4513

    @romgl4513

    8 ай бұрын

    Sharks with frikin' laser beams attached to their heads!

  • @greycatturtle7132

    @greycatturtle7132

    8 ай бұрын

    Cool

  • @GeoStreber

    @GeoStreber

    8 ай бұрын

    Terrorist sharks sounds like a nightmare scenario. Or a upcoming creature feature on Syfy.

  • @ripvanwinkle2002

    @ripvanwinkle2002

    8 ай бұрын

    undwerwater shark terrorists!

  • @dangerjoe8911
    @dangerjoe89118 ай бұрын

    I love how Ian can casually reference any weapon and reliably say "We'll cover it in a future video" or "We have a video on it".

  • @thescatologistcopromancer3936

    @thescatologistcopromancer3936

    8 ай бұрын

    He has mentioned before that he potentially has a multiple year backlog

  • @nunyabidniz2868

    @nunyabidniz2868

    8 ай бұрын

    Excepting of course, the Federov Avtomat 1916. IIRC, he's still trying to find & get access to one of those. That pesky Putin & his attempted conquest of Ukraine certainly put the kibosh on *that* project!.. (for now.)

  • @yorick6035

    @yorick6035

    8 ай бұрын

    ​@@nunyabidniz2868or thanks to the war it might end up in Ian's hands due the Ukrainian army capturing some Russian conscript who was randomly issued that weapon due to weapon shortages

  • @kyriss12

    @kyriss12

    8 ай бұрын

    I don't know who's crazier. FPS Russian with his near suicidal usage of Tannerite and blatant disregard for the IRS. Scott from Kentucky ballistics with his manic 5-year-old energy and love for oversized guns despite a near brush with death from an exploding BMG. Or Ian who regularly gets his hands on 300-year-old museum pieces. Explaines how only 3 were ever made, and it probably cost more than the contract on his life. Then loads the things with explosive powder and fires some rounds down range without a care in the world.

  • @Pusserdoc
    @Pusserdoc8 ай бұрын

    If it hasn't been mentioned earlier, these things were made when most SF divers used oxygen rebreathers, which don't produce bubbles but can't be used much below 10m because the water pressure any deeper risks fitting/dying from oxygen toxicity.

  • @johnsanko4136
    @johnsanko41368 ай бұрын

    An underwater pepperbox pistol whose electronic firing system works like a distributor cap. Wild stuff.

  • @andersjjensen

    @andersjjensen

    8 ай бұрын

    Just HK doing HK things I suppose.

  • @XJ220NJ

    @XJ220NJ

    8 ай бұрын

    A distributor cap is EXACTLY what I thought of, too! Just that this one can cause a completely different kind of misfire.

  • @alexb7641

    @alexb7641

    8 ай бұрын

    And ultimately the big question is who the hell are you shooting underwater to necessitate this.

  • @MachinistJohn

    @MachinistJohn

    8 ай бұрын

    ​@@alexb7641Mermaids. E-thots of times gone by...

  • @TheLukasDirector

    @TheLukasDirector

    8 ай бұрын

    ​@@alexb7641I'm afraid that's not how military procurement works.

  • @ericgrumbles447
    @ericgrumbles4478 ай бұрын

    I saw this thing for the first time as a kid in a volume of Jane's Infantry Small Arms. Later in life I worked for a guy who was a former SEAL and brought the book into work and he commented on this gun specifically. He said it worked better than anyone thought it would and that the waterproofing was absolute garbage. Apparently if you fire it in a bare hand underwater, it gives you quite an electrical shock.

  • @hanelyp1

    @hanelyp1

    8 ай бұрын

    Tells me it uses a spark gap ignition, not resistance heating ignition.

  • @BatCaveOz

    @BatCaveOz

    8 ай бұрын

    This pistol had a 24 Volt system... generally at least 30 Volts are needed to overcome skin resistance.

  • @eiv-gaming

    @eiv-gaming

    8 ай бұрын

    @@BatCaveOz I also seen a cap in that, could be using a buck boost to push it higher.

  • @luislongoria6621

    @luislongoria6621

    8 ай бұрын

    Aside from the ballistic rods specifically made for sharks, a decent electrical charge should in theory, deter a shark from taking your hand. I can't imagine a shark gun would ever be used by a diver when there are better options except as a training aid when you really want to get someone's attention

  • @thysonsacclaim

    @thysonsacclaim

    8 ай бұрын

    @@BatCaveOzNot in water. Especially not with ions in it.

  • @notesfromthebunker6250
    @notesfromthebunker62508 ай бұрын

    Between the G11 and the P11, Ian is probably the only human on the planet, outside of HK, to ever handle both.

  • 8 ай бұрын

    I'm sure there are a number of guys outside HK who haven't just handled both, but even fired both. Just a handful or two, I give you that.

  • @RodrigoRodriguezowl

    @RodrigoRodriguezowl

    8 ай бұрын

    i think it would be more accurate to say he is the only one to have in depht assenbly, dissasembly and history footage of the guns

  • @RamadaArtist

    @RamadaArtist

    8 ай бұрын

    Apparently Germany actually had a short production run of 1000 G11s, some of which were distributed to the Bundeswehr. If it had only ever seen trials, I'd be more inclined to believe you are correct, but I've got to imagine at least a few German special forces members have had the opportunity to handle both.

  • @JamesTrewolla

    @JamesTrewolla

    5 ай бұрын

    ​@@RamadaArtistwhy would Budweiser need underwear guns. Is that how they got rid of those frogs?

  • @wewillrockyou1986
    @wewillrockyou19868 ай бұрын

    Electric firing mechanism is likely because any mechanical striker/hammer/etc based system would perform differently in water compared to out of it. Sealing water out of electronics is relatively easy.

  • @DanStaal

    @DanStaal

    8 ай бұрын

    That and just general reliability/usability - a mechanical system that can cock and release a hammer is going to have trouble if water gets into it, and it would have to be cocked by hand for each firing. Which means harder to use, and harder to keep water out as moving parts have to be exposed to the water. VS. Electrical where they have almost no moving parts, and all of them that do move are very low-powered, and driven directly by the trigger. It also makes it 'automatic' in that you can fire multiple shots without having to manually cock the gun. Biggest issue is likely water getting into the battery compartment, and as long as it's just a little even that wouldn't cause any issues with firing it.

  • @d9720267

    @d9720267

    8 ай бұрын

    @@DanStaal Make more noise too.

  • @ChannelSho

    @ChannelSho

    8 ай бұрын

    And even if there's water around the pins for firing, as long as there's metal contact, electricity uses the path of least resistance so the water wouldn't matter anyway.

  • @GeorgePoggington

    @GeorgePoggington

    8 ай бұрын

    ⁠@@d9720267 A hammer being lowered in water would be almost inaudible due to the way sound travels in water.

  • @andrewdenzov3303

    @andrewdenzov3303

    8 ай бұрын

    So how Russians made underwater assault rifles?

  • @Case16710
    @Case167108 ай бұрын

    If Ian ever gets to shoot this underwater on video, he should do it wearing his Bond tux with scuba gear.

  • @mickleblade

    @mickleblade

    8 ай бұрын

    In Arizona ?

  • @Case16710

    @Case16710

    8 ай бұрын

    @@mickleblade he’s been known to travel

  • @the_snobot
    @the_snobot8 ай бұрын

    I read an interview somewhere with a former Marine National diver (the French navy) who said the vast majority of his time underwater was less than 10m deep, so the relatively low water resistance isn't all that surprising in that context. I suppose if you're swimming through a river or something to covertly access a remote facility then the water is more there for concealment, and as long as you're deep enough to avoid detection from the surface that's all you need. If it's murky enough that could easily be less than 10m of depth.

  • @pvecchierini

    @pvecchierini

    8 ай бұрын

    I think it's linked to the fact that combat divers don't use classical compressed air bottles but oxygen diving devices that can't be used below 6 or 7 meters under water.

  • @alexandrelarsac9115

    @alexandrelarsac9115

    8 ай бұрын

    Pure oxygen used in rebreather become toxic at a depth of 7 meters, 22 feet. For most of people, there is a danger at only 4 meters with pure oxygen. "Oxygen toxicity occurs in most people when the partial pressure of oxygen reaches 1.4 atmospheres or greater." That's why combat swimmers dive at only 6 meters deep, 19 feet. So this weapon being rated to 10 meters max depth is enough.

  • @Matt_The_Hugenot

    @Matt_The_Hugenot

    8 ай бұрын

    Combat divers generally stay within NDS (No Decompression Stop) limits, though they can push them in practice. If you're sneaking around in a harbour you don't want to be waiting around trying to avoid decompression sickness.

  • @selachianseas999

    @selachianseas999

    8 ай бұрын

    @@alexandrelarsac9115 - It's something of a bell curve as not all people react the same to equivalent oxygen partial pressures. When dive tables were first created based on military diving research, 2.0 was the limit for the same reason as the US Navy decompression tables were more lenient - they were dealing with a pretty uniform sample set of physically above-average subjects. Recreational dive agencies toned that back to 1.6 and then in the last 20-25 years to 1.4, because there is a percentage of the population that has a lower physiological tolerance and may tox above 1.4 while most people were perfectly fine at 1.6.

  • @maximilianmustermann5763

    @maximilianmustermann5763

    8 ай бұрын

    Combat divers usually only use water as a means of covert transportation. They don't really fight battles in water, they just get to places without being seen in the water. Then they do whatever they do outside and maybe dive back into the water to get out.

  • @TheFreakedoutduck
    @TheFreakedoutduck8 ай бұрын

    1:29 I remember playing a game called "Depth" a few years back and seen these firearms in-game. I was aware that there are a handful of "underwater guns" but its cool to learn some real life details.

  • @WolfoftheWoodsAirsoft
    @WolfoftheWoodsAirsoft8 ай бұрын

    A P11 type ppistol was seen in the TOMB RAIDER - CRADLE OF LIFE film. Used by Lara Croft in a scene it was seen firing 'darts' above water. I have never bothered to check out IMFDB on this as i knew from journals and books that the P11 was a 'secret' pistol. So very cool to see it.

  • @akizeta
    @akizeta8 ай бұрын

    Maintaining the supercavitation bubble in which the underwater dart travels is very pressure dependent. The P11 is probably rated only for 1 atmosphere gauge pressure (30', 10m) because deeper water lowers the range drastically, with the minimum speed required to keep the supercavitation rising. Also, I'd guess special forces don't spend a lot of time deeper than about 30'; they probably don't want to take time to decompress after coming out of their sub if they're heading towards land.

  • @lc4biker

    @lc4biker

    8 ай бұрын

    Another thing is that rebreathers (the bubble-free/closed circuit breathing apparatuses commonly used by the SF community) generally has a depth limit of about 6 meters anyway, due to oxygen toxicity at higher pressures.

  • @pan6593

    @pan6593

    8 ай бұрын

    It‘s also that it‘s simply not needed most of the time. You have a relatively high grade of ‚invisibility‘ at those depths already.

  • @Bearmauls

    @Bearmauls

    8 ай бұрын

    @@lc4biker I think that's only an issue for a pure-oxygen rebreather. Modern systems can use a nitrox or heliox mix if you need to go deeper, but I recognize that those technologies may not have been sufficiently mature for military rugged requirements at the time this firearm was developed.

  • @tacticalmanatee
    @tacticalmanatee8 ай бұрын

    I still remember this gun from the PC game Delta Force: Land Warrior. It was certainly an odd one and I always figured it had some special purpose.

  • @rwkerstetter

    @rwkerstetter

    8 ай бұрын

    Same here. That was the only game I recall playing that used this firearm, but it sure was memorable.

  • @PrekiFromPoland

    @PrekiFromPoland

    8 ай бұрын

    Oddly enough, you could equip the Soviet underwater APS rifle as your primary gun.

  • @formerpilgrim4934

    @formerpilgrim4934

    8 ай бұрын

    I just started playing this again for old times sake.

  • @a777aa64rus

    @a777aa64rus

    8 ай бұрын

    Oilrig night mission...

  • @romgl4513

    @romgl4513

    8 ай бұрын

    It was so secret, only to be revealed in that popular PC game.

  • @DoitForTheLolz1
    @DoitForTheLolz18 ай бұрын

    Oh cool! I remember this being featured in the 007: nightfire videogame. Interestingly, they portrayed it as a tranquilizer dart gun, which I guess it could have that kind of ammunition, but I don't think they ever made such a thing in real life.

  • @alexbellington9243

    @alexbellington9243

    8 ай бұрын

    Lol i beat that game on ps2 so many times. The multiplayer was pretty dope too.

  • @RageMagikarp

    @RageMagikarp

    8 ай бұрын

    That game went so hard

  • @caylumhenderson9396

    @caylumhenderson9396

    8 ай бұрын

    Wow was just thinking this as I looked at where the ammo went

  • @aidanfarnan4683

    @aidanfarnan4683

    8 ай бұрын

    I seem to remeber the pen gun being the tranquiliser, and this just being a silenced dart gun?

  • @BleedingUranium

    @BleedingUranium

    8 ай бұрын

    Night Shift. And yeah, Nightfire is an awesome game. I grew up with the Bond films, and this was my first FPS and first multiplayer game. :D

  • @DigitalApex
    @DigitalApex8 ай бұрын

    I distinctly remember seeing this in the 007: Nightfire video game. Thought it was a unique design for the game, come to find it was actually a covert handgun. Neat.

  • @macmccollum6064
    @macmccollum60648 ай бұрын

    I've used a speargun for decades while scuba diving, and I have to say that pistol has an incredibly effective range underwater. I need one! Great video and description of its use and features.

  • @hibob841
    @hibob8418 ай бұрын

    The 10m depth limit is kind of surprising, but operationally it might not have been so limiting a factor. Not that their tactics are well-publicized, but my understanding is that frogmen-types tend to stay pretty shallow. They're just trying to sneak into a harbor/boat/whatever without being detected; 15-20 feet is plenty for that, in most scenarios (particularly at night). They almost always use rebreathers, which make few bubbles.

  • @sheenufilms
    @sheenufilms8 ай бұрын

    I WAITED FOR A VIDEO ON THIS GUN FOR SO LONG! Thank you!

  • @JGCR59
    @JGCR598 ай бұрын

    I guess 15 m underwater is quite ok because seeing someone underwater at 15 meters, especially in the Baltic or North Sea where the Kampfschwimmers it was originally designed for would operate is rare. Especially at night where most operations would take place. Re depth, Combat divers are not supposed to dive deep. They have two missions basically, either land insertion or port sabotage (placing charges on ship's hulls etc) or countering both of those. You don't need to dive deeply for either.

  • @from_space

    @from_space

    8 ай бұрын

    Still makes me wonder why they didn't make it capable for more water pressure. So you at least have the option to dive deeper if required for part of the diving route

  • @quakethedoombringer

    @quakethedoombringer

    7 ай бұрын

    @@from_spaceit is just not necessary. Most of the high valued target (ships, docks, etc.) are on the surface. I can only see that scenario plays out if aircraft or satellite parts falling into the ocean floor and the military prefers sending divers because subs are clumsy and you as the host nation does not want that. The problem is that it is extremely likely + you can just sonar ping the enemy frogmen with the submarine in that case

  • @22HRR
    @22HRR8 ай бұрын

    Please do more videos on underwater firearms! There are so many odd and cool guns in that world

  • @jft1911
    @jft19118 ай бұрын

    Destin from the Smarter Every Day channel and the Slow Mo guys did a collab about a decade ago firing guns underwater. It's fascinating, and shows how poorly a regular bullet functions underwater.

  • @tz8785

    @tz8785

    8 ай бұрын

    And the Mythbusters tested shooting bullets into water (also not very effective, the bullets lost speed quickly, some shattered when hitting the surface).

  • @MostlyPennyCat

    @MostlyPennyCat

    8 ай бұрын

    I wonder if you could design a super-cavitating bullet?

  • @Bacteriophagebs

    @Bacteriophagebs

    8 ай бұрын

    There was a Underwater Demolition Team mission in WWII where the UDTs had to swim up a river with numerous Japanese defenses on the shores. The river wasn't very deep and was quite clear, so they were visible to the enemy, who shot at them hundreds or possibly thousands of times. The UDTs just swam through the rain of sinking bullets, catching some of them as souvenirs.

  • @MrDgwphotos

    @MrDgwphotos

    8 ай бұрын

    The Imperial Japanese Navy had shells for naval guns that were specifically designed to retain their ballistic properties after hitting the water, so that they could penetrate the hulls of US Navy warships even if they landed short and cause flooding. At the Battle of Cape Esperance during the Guadalcanal campaign, USS Boise was hit by two IJN 8" shells below the waterline that penetrated and started a fire in the forward magazines. This fire might have detonated the ammo stored in the magazines, but the flooding that was also caused by the shell hits, put out the fire and saved the ship, as the men who would have carried the order to intentionally flood the magazine were dead, killed by that same fire.

  • 8 ай бұрын

    @@Bacteriophagebs[citation needed]

  • @LazyLifeIFreak
    @LazyLifeIFreak8 ай бұрын

    I can understand why the barrel clusters would have to be returned to factory for reloading, there is a lot of intricate components and reassembly required, tight fittings to ensure a proper seal.

  • @spacewater7

    @spacewater7

    8 ай бұрын

    No my friend it's just that same old tactical strategy used by HP in their inkjet printers. To make it cheaper to buy a whole new device every time to squeeze as much $£€ out of you as possible 🤑

  • @LazyLifeIFreak

    @LazyLifeIFreak

    8 ай бұрын

    @@spacewater7 Nah, once you line up the costs on a spreadsheet and factor in everything ill bet 100€ on it being more expensive to get ones own troops to correctly reload these barrel assemblies.

  • @hanelyp1

    @hanelyp1

    8 ай бұрын

    Remove the breech plug. Clean and check spark gap. remove spent sabot and clean barrel. Replace sabot, with new projectile. A little wax around the edges of the sabot can deal with the seal. load powder. insert breech plug, with an elastic seal. Not a field operation, but doesn't look much more complex than reloading spent casings.

  • @LazyLifeIFreak

    @LazyLifeIFreak

    8 ай бұрын

    @@hanelyp1 One would assume so but I am certain there is more to it than that, there is almost always more to something than initially thought.

  • @andersjjensen

    @andersjjensen

    8 ай бұрын

    @@spacewater7 The "test cartridges" you get preinstalled on printers contain about 15% as much ink/toner as a real one. But people who don't realise that think "uh, a new set of cartridges is more expensive than a new printer... so I'll just buy a whole new printer!" but you're losing A LOT of money over time that way. A full set of toners for my laser printer is about two times the price of the printer. But each color is 3000 pages and black is 5000 pages compared to the 400 and 600 pages, respectively, I got with it from factory. It doesn't take a PhD in math to calculate that buying a new printer is a stupid idea, even when factoring in that the printer needs the drum replaced every 50k pages, and a drum is about the price of a black cartridge.

  • @lobotomite9767
    @lobotomite97678 ай бұрын

    I grew up playing delta force land warrior on my dads work computer. It had a bunch of weird guns in it like this, the pankor jackhammer, the OICW and the caseless G11. Great game.

  • @sksthrowaway2270

    @sksthrowaway2270

    8 ай бұрын

    >game is called land warrior >has an underwater gun

  • @arandomuser1723

    @arandomuser1723

    8 ай бұрын

    ​@@sksthrowaway2270two of them. You forgot the APS underwater rifle

  • @lobotomite9767

    @lobotomite9767

    8 ай бұрын

    @@sksthrowaway2270 it had two underwater guns.

  • @robertm8401

    @robertm8401

    8 ай бұрын

    Exactly what first came to mind! Loved that game, only one back then that also featured bullet drop.

  • @montlejohnbojangles8937
    @montlejohnbojangles89378 ай бұрын

    I've got to admit I didn't think we'd ever see a P11 on the channel! Impressive work.

  • @hans-joachimtenhoope1744
    @hans-joachimtenhoope17448 ай бұрын

    Yes! You got one! The first time I saw it was decades ago in an article in the Dutch gun magazine SAM. The article showed several pictures of the gun, including a picture of divers posing with it and one picture with a lose barrel cluster on the gun. Needless to say, H&K was not happy with that.

  • @bobjordan8283
    @bobjordan82838 ай бұрын

    The fact that you had to send the empty barrel units BACK to be reloaded shows that something crazy is going on with the actual rounds themselves!! Also more money for H&K lol!!

  • @christopherharmon2433

    @christopherharmon2433

    8 ай бұрын

    Also H&K can control who has access to loaded barrels.

  • @hanelyp1

    @hanelyp1

    8 ай бұрын

    Reloading the barrels looks similar in complexity to reloading a spent shell.

  • @nealgold8442
    @nealgold84428 ай бұрын

    Great video and very informative!!

  • @seanylewl
    @seanylewl8 ай бұрын

    I've always been curious about these since first reading Firewall by Andy McNab. After your explanation about how quiet the pistol would be to shoot, it makes a lot more sense in the context of their appearance in the book!

  • @harrypalmer728
    @harrypalmer7288 ай бұрын

    The advantage of the Russian system is that it is reloadable by the user and its limited by depth only by the effective distance of the round. The deeper you go the shorter the effective distance. I'm looking forward to the video in it.

  • @mutantfmj
    @mutantfmj8 ай бұрын

    close circuit diving like Dreager re breather combat diving you are limited to only diving down to 30feet. We in Recon and Navy Seals train all dives at maintaining approx. 30 feet or less of depth when inserting by re breathers. The Navy also uses a LAR5 LO-MU re breather (back mounted) for EOD that goes deeper, as well as a tri-mix gas system for even deeper dives.

  • @DanStaal

    @DanStaal

    8 ай бұрын

    30 feet is also likely all you're going to need when using the water as cover to attack a target. Any deeper and the target is going to have be a submarine or similar of some kind, and therefore not something you can attack directly with manual tools. But 30 feet is plenty to give you cover when approaching a beach or a surface target.

  • @hardmcshaft7931

    @hardmcshaft7931

    8 ай бұрын

    The limit with rebreathers is only 10m on units that only replenish oxygen. If unhave a separate bottle of dilutent to dilute the mix as pressure increases u can go much deeper. U just have to monitor the ppo2. U can use sodium hydroxide or calcium hydroxide for the co2 absorber

  • @stephencolley334

    @stephencolley334

    8 ай бұрын

    ​@@hardmcshaft7931 Really unwanted technical info, and of doubtful credibility.

  • @crosshp9266
    @crosshp92668 ай бұрын

    Ian thankyou for this video.

  • @jeffie8696
    @jeffie86968 ай бұрын

    I remember this as being the same concept of the silent shotgun shell , it contained the discharge within the shell and required no modification to the weapon

  • @joeysimunds6352
    @joeysimunds63528 ай бұрын

    Id love to lurk with Ian sometime procuring rumors of secret vault guns or history and seeing the possible years it takes to find and then arrange to be able to get a proper shot(video) of said artifacts

  • @TheMainMan.

    @TheMainMan.

    8 ай бұрын

    So you'd love to be his apprentice

  • @JakeRidesBikez
    @JakeRidesBikez8 ай бұрын

    I'd be curious how much each loaded barrel-cluster costs when billed to a NATO military

  • @JR-ru3wt
    @JR-ru3wt8 ай бұрын

    Been waiting a long time for thIs, LFG!

  • @extrastuff9463
    @extrastuff94638 ай бұрын

    Considering HK is so secretive about it maybe that 10m limit is one that is semi-public or one they guarantee to be safe. While it can practically withstand being deeper surprisingly well? Neat creation, I recall seeing photos of this odd thing before but never thought much of it. The way to keep it silent and prevent gas bubbles at the surface is very creative, I hope they do have some easier to reload above water practice barrel clusters that can be reloaded by the users. It would be interesting if they were ever to design something that combines a "regular" silenced pistol with a magazine that fires through a central barrel and you can fit electronically fired underwater barrel clusters around it. At least to my brain that seems like it should be possible when such a clunky thing is already acceptable for regular use, but maybe the gas trapping silencer and simplicity is more important to its users.

  • @alt5494
    @alt54948 ай бұрын

    Given the Russian combo of armed combat dolphins & patrol boat's underwater weapons can be essential.

  • @michaelnolan6054
    @michaelnolan60548 ай бұрын

    So, a pepperbox with an electronic firing system. Looking forward to their waterproof matchlock.

  • @AtheistOrphan

    @AtheistOrphan

    8 ай бұрын

    Matchlock Minigun

  • @brorjordas1979
    @brorjordas19798 ай бұрын

    Way cool video. Thanks!

  • @alancranford3398
    @alancranford33988 ай бұрын

    I forgot how many decades ago that I saw photos of the HK P11. Thanks, you added to the limited details that I had learned in the past.

  • @Spectrecontrol
    @Spectrecontrol8 ай бұрын

    Considering water visibility and currents, these would probably be mainly used for close-in work. Interestingly it might actually be possible to shoot 'around corners' if the current is strong enough and the range is far enough away to allow time for the projectile to curve. Super keen to see you out on the 'range' with one of these!

  • @cedricathlan9399
    @cedricathlan93998 ай бұрын

    Something about this pistol just *screams* retrofuturistic pepperbox 😂

  • @agoogleaccount2861

    @agoogleaccount2861

    8 ай бұрын

    ROTFL. It's true!!

  • @krissteel4074

    @krissteel4074

    8 ай бұрын

    For when the fish cheat at poker or the shark at the bar slaps your girl on the arse

  • @cedricathlan9399

    @cedricathlan9399

    8 ай бұрын

    @@krissteel4074 😂

  • @billrowan1957

    @billrowan1957

    5 ай бұрын

    By "something" you mean Everything?

  • @canadiansfor2A
    @canadiansfor2A8 ай бұрын

    Very cool stuff.

  • @UnboxRacing
    @UnboxRacing8 ай бұрын

    Fun fact. Andy McNab’s Firewall novel references this weapon, but calls it a “P7.” Nick Stone, the books protagonist, wrestles one off a US agent in a old warehouse in Finland. Great book.

  • @Saint_Wolf_
    @Saint_Wolf_8 ай бұрын

    The British Royal Armored museum!? If Jonathan Ferguson doesn't make a cameo I'll be disappointed! Let's be real that's the only reason many of us watch are subscribed with the bell on to Gamespot. Of course in joking, in assuming, Jonathan is a busy man when caring for his museum, but crazy to know Ian and Jonathan could be in one video, or even a photo together!

  • @beelow84

    @beelow84

    8 ай бұрын

    They’ve done several videos together. One that comes to mind is a video on homemade guns in the uk. Way before the video game videos.

  • @Saint_Wolf_

    @Saint_Wolf_

    8 ай бұрын

    @@beelow84 sounds like it, but I'll go watch it now.

  • @AtheistOrphan

    @AtheistOrphan

    8 ай бұрын

    Royal Armouries.

  • @Saint_Wolf_

    @Saint_Wolf_

    8 ай бұрын

    @@AtheistOrphan auto corrected, not editing now.

  • @KuruGDI
    @KuruGDI8 ай бұрын

    I was hoping for a "stay tuned for the next video when we take this one out on the range" at the end 😟

  • @TheArmourersBench
    @TheArmourersBench8 ай бұрын

    Very cool!

  • @jakevalent6180
    @jakevalent61808 ай бұрын

    appreciate your work ethic

  • @craighansen7594
    @craighansen75948 ай бұрын

    New movie, Shooting Nemo.

  • @luce163
    @luce1638 ай бұрын

    Forgotten Weapons uploads a new video Brain: YIPPEE!!!

  • @EokaBeamer69
    @EokaBeamer698 ай бұрын

    great video very interesting

  • @jamesellsworth9673
    @jamesellsworth96738 ай бұрын

    You find fascinating weapons to explain! This is a fine example.

  • @reiisthebestgirl
    @reiisthebestgirl8 ай бұрын

    Sending barrels to factory for reloading sounds really German.

  • @Dylan-M

    @Dylan-M

    8 ай бұрын

    It must be at the proper specifications!

  • @Gruoldfar

    @Gruoldfar

    8 ай бұрын

    Na, more like Apple...

  • @RustedCroaker

    @RustedCroaker

    8 ай бұрын

    @@Dylan-M This and the fact that people in HK loves extra money too.

  • @scratchy996

    @scratchy996

    8 ай бұрын

    @@GruoldfarSteve Jobs' mother was German...

  • @alexriley55
    @alexriley558 ай бұрын

    Bond James Bond

  • @oscarsadler7873

    @oscarsadler7873

    8 ай бұрын

    James Pond

  • @fredford7642
    @fredford76423 ай бұрын

    And I thought I knew everything about firearms. Thank you Ian, for another great video.

  • @DerGottDesChaos
    @DerGottDesChaos8 ай бұрын

    I thought it would be hard to top the Pancor Jackhammer and the G11 videos, but here we go. I remember seeing this gun in books and magazines for years but all details were said to be secret. Was quite surprised when i saw the self-sealing mechanism on the barrels in a military magazine just a few years ago. Still feels kinda odd to see Ian with it now.

  • @dibingsdibingens8463
    @dibingsdibingens84638 ай бұрын

    The sealing element that makes it basically silent kinda reminds of the Russian PSS with its self-sealing cartridges

  • @VaguelySynthetic
    @VaguelySynthetic8 ай бұрын

    There's an old Delta Force game, came out in like, '98 or something that features this pistol, if I remember correctly.

  • @danielyu8022

    @danielyu8022

    8 ай бұрын

    My thoughts exactly!

  • @christophergavila7005
    @christophergavila70058 ай бұрын

    That would make a fine conversation piece in any collection. Awesome!

  • @alanniederlitz8630
    @alanniederlitz86308 ай бұрын

    Fantastic stuff... very cool pistol

  • @TimberWolf762
    @TimberWolf7628 ай бұрын

    IDK how secret this is. It was featured in 1999's Delta Force 2 game by Novalogic.

  • @orbiradio2465

    @orbiradio2465

    8 ай бұрын

    Were the specifications in the game correct? And can you prove it?

  • @TimberWolf762

    @TimberWolf762

    8 ай бұрын

    @@orbiradio2465 Irrelevant whether they got the specifications precisely right. The point is that the existence of it hasn't been secret since at least 1999.

  • @fainterdot
    @fainterdot8 ай бұрын

    The lion fish video finally pays off!

  • @jessicahamby6373

    @jessicahamby6373

    8 ай бұрын

    Really? I personally thought that video was sick! Now if he combines the two....❤

  • @ironmikehallowween
    @ironmikehallowween8 ай бұрын

    Very interesting pistol. Thanks for the video.

  • @armageddonready4071
    @armageddonready40718 ай бұрын

    Happy holidays forgotten weapons staff and crew.

  • @yorhaunit8s
    @yorhaunit8s8 ай бұрын

    Who operates from a pineapple under the sea? SpongeBob HecklerPants!

  • @roykliffen9674
    @roykliffen96748 ай бұрын

    Let's see if I get this correctly; you discharge the gun, sabot and projectile accelerate, sabot plugs the narrowing in the barrel - trapping the expanding gas inside - and the projectile continues on its merry way. No wonder users were not allowed to reload; with all that pressure trapped behind the cartridge you could actually shoot yourself with the cartridge if you managed to pry it free.

  • @ToastyMozart

    @ToastyMozart

    8 ай бұрын

    I think the soviets ostensibly had an above-water suppressed revolver that used the same principle.

  • @chemistryofquestionablequa6252

    @chemistryofquestionablequa6252

    8 ай бұрын

    ​@@ToastyMozartthey still do, it's a weird piston type cartridge.

  • @thekraken1173

    @thekraken1173

    8 ай бұрын

    @@ToastyMozart Its Russia not USSR. OTs-38 Stechkin silent revolver was designed in 2001. *PSS silent pistol in 1979.

  • @Horseshoecrabwarrior

    @Horseshoecrabwarrior

    8 ай бұрын

    Quite possibly, yeah. Over time, the pressure would probably leak out, but it would definitely be dangerous.

  • @vapormissile

    @vapormissile

    8 ай бұрын

    Oops. Did not think of that. My rich self in the parallel universe just died 😢 "Hah! Observe whilst I reload my OWN cartr"POW!

  • @realQuiGon
    @realQuiGon8 ай бұрын

    Holy shit, I've been really curious about this gun for many years (pretty much since the Wikipedia article about them popped up), but never found much information on them, let alone a video. It's really cool, that you got your hands on one of these to show them!

  • @tolga1cool
    @tolga1cool8 ай бұрын

    Finally he found one! Ines hoping for this review ever since the HK room videos

  • @LaVistasays
    @LaVistasays8 ай бұрын

    When are you taking this spearfishing?

  • @demongrenade2748
    @demongrenade27488 ай бұрын

    I had no idea this was a real firearm. I remember seeing this gun in 007: Nightfire on the PS2 way back in the day and I just assumed it was a made up weapon made specifically for the game. Its really neat that its a real thing.

  • @MatthewJBRO

    @MatthewJBRO

    8 ай бұрын

    In 007: Nightfire this pistol was used as a tranquilizer gun in the skyscraper mission.

  • @DonavynEstep
    @DonavynEstep8 ай бұрын

    I’ve known about this model for years and there’s never really been much info that I could find on it, thanks for the video.

  • @bennesky4323
    @bennesky43238 ай бұрын

    Waiting also for Russian APS, FN Minimi, and TMP..

  • @BOTSamJ
    @BOTSamJ8 ай бұрын

    When will louis rossmann talk about right to reload

  • @jjforcebreaker
    @jjforcebreaker8 ай бұрын

    Fascinating and super cool, needles to say.

  • @TMFShooting
    @TMFShooting8 ай бұрын

    Wow '' Very Interesting , Great Stuff ''💯 Thank you Ian 💥💥💥💥💥💥💥

  • @peepsbates
    @peepsbates8 ай бұрын

    NovaLogic's Delta Force gang. Who up?

  • @JippaJ
    @JippaJ8 ай бұрын

    I can imagine a hammer or striker slowing down a lot in water, thus electrical firing being more reliable.

  • @RustedCroaker

    @RustedCroaker

    8 ай бұрын

    The Russians somehow have no problems with that in their underwater rifles and pistols. Which btw rated for much deeper use.

  • @badmonkey2468
    @badmonkey24688 ай бұрын

    Really cool I've never heard of this before

  • @Benedek77
    @Benedek778 ай бұрын

    "Sneaky people doing sneaky things" - This statement totally deserves a T-shirt (with interesting graphics) :)

  • @tis7963
    @tis79638 ай бұрын

    Hope that Ian can someday get his hands on a Quiet Special Purpose Revolver. It was a Vietnam era project to make a gun for use in tunnels, which used a similar system to contain the propellant gases.

  • @noturfather1106

    @noturfather1106

    8 ай бұрын

    Now that would be cool. Someone should make some ammo with the same design as the qspr

  • @tis7963

    @tis7963

    8 ай бұрын

    Alas, the ATF decided that the ammunition qualified as a silencer.@@noturfather1106

  • @00Q722
    @00Q7228 ай бұрын

    I'm somewhat surprised that it is battery powered, and not a piezoelectric crystal system. Perhaps I overestimate the power or reliability of a potential crystal system.

  • @michelesilvestri8340

    @michelesilvestri8340

    8 ай бұрын

    piezo electric cristal arenot able to produce the 24v used by this gun tho

  • @JohnWilliamNowak

    @JohnWilliamNowak

    8 ай бұрын

    Or put the battery in the magazine so you swap out a fresh battery every time you reload.

  • @fricki1997

    @fricki1997

    8 ай бұрын

    @@michelesilvestri8340 The piezoelectric crystal in a standard electric gas lighter can easily produce 800 volts....maybe they simply don't have enough amps to reliably trigger the electric cartridge, or they wanted to prevent a possible chain fire event?

  • @1210alpha

    @1210alpha

    8 ай бұрын

    I have a strong suspicion that the 24V is required for exciting the propellent in both under water and above water. It would be a very legitimate reason to have the chemical formula tightly kept within in H&K. The same era when the G11 was in full swung development with the concept of caseless ammo

  • @chemistryofquestionablequa6252

    @chemistryofquestionablequa6252

    8 ай бұрын

    If you've ever used a cheap piezo lighter they're pretty darn reliable at least as far as sparking every time.

  • @iatsechannel5255
    @iatsechannel52558 ай бұрын

    Love this!

  • @Ranger_Kevin
    @Ranger_Kevin8 ай бұрын

    That is so cool that you get to show this. I remember seeing this in one of the Tomb Raider movies with Angelina Jolie, and was fascinated by it. Now if only we could see you getting to shoot it, but that is probably unoptanium...

  • @tinysim
    @tinysim8 ай бұрын

    Were underwater weapons ever used ? The odds of encountering enemy divers during covert ops seems fairly unlikely.

  • @Gameprojordan

    @Gameprojordan

    8 ай бұрын

    If they were used it would have been a handful of times at most, and more than likely kept secret

  • @realQuiGon

    @realQuiGon

    8 ай бұрын

    Sharks

  • @alun7006

    @alun7006

    8 ай бұрын

    We'll likely never know specifics. All sneaky beaky stuff with people going places they're not supposed to be.

  • @roberthartburg266

    @roberthartburg266

    8 ай бұрын

    This gun is from the same era in which the USA and the Soviets trained Seals and Dolphins to attack enemy divers with knifes on their heads.

  • @twosheds7105

    @twosheds7105

    8 ай бұрын

    The only scenario I can think of that is somewhat possible would be divers defending a harbor/ship encountering attack divers.

  • @duffmid
    @duffmid8 ай бұрын

    Did secret squirrel frogmen have a lot of use for something like this? Outside of a James Bond Thunderball scenario were there a lot of underwater person to person engagements?

  • @onii-chandaisuki5710

    @onii-chandaisuki5710

    8 ай бұрын

    Better to have it and not need it et cetera.

  • @carmatic
    @carmatic8 ай бұрын

    those barrels look like they have a lot of room in them to work with...the sealed design and electrical firing system also gives it some additional possibilities... I'm imagining that there are classified versions of barrel clusters which contain things other than underwater darts and above-water bullets such as, having those barrels be essentially miniature torpedo tubes, launching Gyrojet-style self-propelling ammunition but underwater

  • @silentseawolf
    @silentseawolf8 ай бұрын

    very cool

  • @whiteskyflyer
    @whiteskyflyer8 ай бұрын

    Ahhhh NFA question! If a civilian in the U.S.A had procured this said super rare and presumably expensive gun. Would it be considered integrally suppressed by the vague and often changing verbiage of the ATF?

  • @beelow84

    @beelow84

    8 ай бұрын

    yes

  • @user-cr4sc1ht9t

    @user-cr4sc1ht9t

    8 ай бұрын

    This type of setup is not a one-off but used in Russian silent pistols too, often referred to as "captive piston" ammunition(albeit this one is clustered and barrel included). Few of those found its ways to US so they have precedents as to how civilian ownership is legally handled.

  • @schiltronmunitions3820
    @schiltronmunitions38208 ай бұрын

    The sealed piston-type silent firing system reminds me of the silent shotgun shell the Russians had. It had a similar system if I recall.

  • @bllopawah
    @bllopawah8 ай бұрын

    Very cool

  • @tombogan03884
    @tombogan038848 ай бұрын

    Always cool to see alternative designs.

  • @cedhome7945
    @cedhome79458 ай бұрын

    I had a once in a lifetime look around there reserve collection (not in Leeds ) and got to see mind blowing stuff including a chance to hold the oldest rifle known to exist ( weird reverse flint lock) and saw Enfield p53? Stocked in every wood type from ebony colour to box wood and redwood plus every type in-between.there was a martini Henry with a flint conversion (captured off tribesmen who had no bullets so they drilled a hole in the breach and soldered a flint conversion to the side and muzzle loaded it !) You can't possibly imagine the thousands of guns there which is surprising considering how restricted the population is in possessing them .

  • @JustARandoChannel
    @JustARandoChannel8 ай бұрын

    Looks like what, I assume, EA modelled the dart gun in 007 Nightfire off of.

  • @tonyz79
    @tonyz798 ай бұрын

    I’ve been waiting for this video for YEARS now, since seeing it on the world guns website forever ago!

  • @shawnr771
    @shawnr7718 ай бұрын

    Very cool.

  • @PhilJLF
    @PhilJLF8 ай бұрын

    Underwater full auto rifle would be pretty cool to look at

  • @dieterdodel835

    @dieterdodel835

    8 ай бұрын

    HK416 😁 kzread.info/dash/bejne/YoJ7pMmilMian8Y.html

  • @christopherharmon2433

    @christopherharmon2433

    8 ай бұрын

    The Soviets made one IIRC.

  • @paleoph6168

    @paleoph6168

    8 ай бұрын

    APS Underwater Assault Rifle and SPP-1M Underwater Pistol.

  • @PhilJLF

    @PhilJLF

    8 ай бұрын

    Cool, I’ll check them out!

  • @RustedCroaker

    @RustedCroaker

    8 ай бұрын

    @@paleoph6168 Also ASM-DT (a more modern thing)