I actually love the idea of going in depth into auxiliary attachments for weapons. love it as always!

@TheTeletrap

2 жыл бұрын

@@samholdsworth420 Still an important part in firearms development. Like that FAL muzzle device that actually causes the rifle to recoil downwards.

@fng2967

2 жыл бұрын

I just wished we would get stats in metrics as well

@korbetthein3072

2 жыл бұрын

@@fng2967 Ian uses Freedom units because Freedom units are superior!

@Valanway

2 жыл бұрын

@@samholdsworth420 We've gone so far past "forgotten" weapons that it's silly to think weird or unique attachments are out of the question.

@jakegarrett8109

2 жыл бұрын

@@samholdsworth420 I actually wouldn't mind seeing the evolution and history of slings, its probably got some interesting developments and even new stuff I don't know about.

Without 3D printing, something like this would have to be made in at least two parts possibly more than that, which would create a whole lot of other issues as it heats up and expands due to the thermal expansion. This is about the only physical way you're building something like this and I absolutely love it. Boeing did something like this with their recent planes and now we're seeing it. Not quite in the consumer market yet but at a much smaller scale and hopefully in much higher volumes as well

@vasyapupken

2 жыл бұрын

if developers are smart enough all parts would have about the same amount of thermal expansion so no problems there. and that suppressor would be field-serviceable. this one is not. one piece means disposable. (expensive and disposable. what a sweet combination to spend some government money)

@anteshell

2 жыл бұрын

Three parts minimum. The baffles and air ducts are impossible to make in one part. On one hand that baffles cannot be machined through such small holes and on the other hand the airducts could not be machined without separating the casing. So, it would always be manufactured the insides in two parts and the casing as third. Or insides in one part with at least one separate end cap(which would still be extremely hard and inefficient) and the casing as third part. It is nice to be able to 3d-print even metals to make this kind of stuff possible. BTW, care to link to that Boeing-stuff or give more specifics for me to find? I'd love to learn about that.

@krissteel4074

2 жыл бұрын

Its starting to pick up into at least the lower-end of commercial production, theres a company up in Darwin here in Australia that does mostly 3d metal printing for a large number of other companies just to replace the process of casting complicated housings, heat sinks, pump parts and so forth. The advantage is that they essentially become the local supply line for logistics. Not slow either, when they were doing some stuff with the Australian Army it was very impressive to see them churn out objects up to 40kg in size at a rate of 100grams a minute- in the field with a transportable system. So it is viable, but for these machines to work enough to make back what they cost you've sort of got to diversify what you make

@ajeje1996

2 жыл бұрын

You can't really clean this though, not easily anyways

@MinksMotorsandMore

2 жыл бұрын

@@vasyapupken A sufficiently deep or wide ultrasonic cleaner with a good solvent would get 95% or more of the carbon buildup in this thing. Besides, it has no wipers, only baffles meaning it has no parts to service. It's a monolithic peice of metal and other than fudging up the threads or denting/bending it by falling with it on a gun there's not really anything to go wrong here.

one inexpensive test you could have tried would be a steady stream of smoke going past the back of the suppressor before for to show the air being sucked through when you shoot

@dickbutt8899

2 жыл бұрын

Blow a vape through it lol.

@Ontheregz

2 жыл бұрын

@@dickbutt8899 a vape and smoke machine a literally the same exact thing lmao! Both use pg for the “smoke” 😂

@El-Burrito

2 жыл бұрын

That would've been cool to see!

@sethrich5998

2 жыл бұрын

That wouldn’t work. The heat is why the forced induction works. Just blowing smoke wouldn’t do anything to show how it works.

@AndrewAMartin

2 жыл бұрын

@@sethrich5998 The first effect is entrained air, caused by the 'nozzle' at the muzzle end. The nozzle increases the velocity of the muzzle blast, which in turn causes a lower pressure in the nozzle, and the higher pressure at the other end pushes the air through the suppressor. That's the effect used by the Lewis gun's cooling jacket (and by the Dyson blade-less fan). That would be seen clearly with smoke, no matter the temp.

The word you were looking for @2:52 is the Venturi Effect. The gasses coming out of the barrel get choked by the reduction of tube diameter at the tip, and thus accelerated, which causes a drop in pressure. (Of course this is a waayyy simplified version of what actually happens.)

@bryantprak7129

2 жыл бұрын

Isn't this the same physic that a tank barrel uses to blow out the excess gas

@Eduardo_Espinoza

2 жыл бұрын

Was thinking the same thing about the tank

@shaiq-nbaiq1826

2 жыл бұрын

I've seen certain model of F250's/2500's with venturi exhaust tips

@Condorito380

2 жыл бұрын

Venturi effect is also how carburetors work. Really wild magic in fluid dynamics.

@Hydrazine1000

2 жыл бұрын

@@Condorito380 No, no no no! Don't let anyone fool you. Carburettors work by _dark magic_ and not some well understood scientific principle, okay? 😉

Finally someone actually paid attention in college. It's nice seeing companies put real engineering into a product.

@CurtHowland

2 жыл бұрын

I try to imagine just how much variety and innovation there would be without the NFA limiting the market so much.

@kekoa_ok

2 жыл бұрын

@@CurtHowland probably way less than we have now. the limitations have brought out some of the best engineers in firearms we've ever seen

@ja0298

2 жыл бұрын

@@CurtHowland ever seen any of the CGS products? The Helios was made for m249s, mk46s, and mk18.

@buckinthetree1233

2 жыл бұрын

I believe this came about because it was a request from U.S. Socom. In history, necessity drove innovation. I feel like today's innovation is driven by money. There are individuals who are capable of developing incredible products, but they come at a high monetary cost. If you recall Ian mentioned that these are extremely expensive. If not for the chance to land a lucrative military contract this product would not have been developed. If the company had tried to develop these for a civilian market then the high cost would have severely limited their ability to sell them. When the government is spending your tax dollars they don't care how much something cost.

@beargillium2369

2 жыл бұрын

The method of manufacture is the big deal more than the level of education of the engineer. The guy who invented 3d sintering deserves the credit imo

Before I worked in a factory, I didn't realise how many limitations there were for metal fabrication. Metal 3D printing is certainly going to be a game changer.

@sierraecho884

2 жыл бұрын

It depends. It has also it´s limitations. The biggest is volume of parts. Thats why 99,9% of all products are being made in relativly simple standard factories.

But if you do grab the suppressor when it’s still hot... ...you get a really pretty pattern branded into your hand! 🤣

@philhaag2178

2 жыл бұрын

Ironically that happened to one of our guys two days ago.... and it did leave the honeycomb pattern on his palm. We're all laughing our butt off at this comment because of that.

@thesaddestdude3575

2 жыл бұрын

@@philhaag2178 Poor guy! But i mean, if he ever want to get into beekeeping.

the vacuum is actually formed at the muzzle end. the narrowing of this is a venturi, just like a carburettor. this causes an acceleration of flow of gases exiting, and a correspondent lowering of the air pressure within the jacket, this being what causes the inflow of air at the barrel end. note that the exterior is 'honey combed' to increase surface area to further aid cooling. a remarkable piece of engineering.

@ExpatriotSilencers

2 жыл бұрын

This device has nothing to do with the Venturi effect. Before you tell me I don't know what I am talking about, I have a US patent on such a design. My patent is listed as prior art on the patent for the can in the video.

@darthvader1995

2 жыл бұрын

@@ExpatriotSilencers do you mind giving a (semi) quick explanation here? I’m a chemical engineer so fairly familiar with fluid dynamics

As an engineering major, SLS printing is something I'm massively interested in, and have been for quite some time. It's always nice to see one of my interests collide with another, and to think of more ways the two could interact.

I remember using metal sintering as a young man, making car parts, old fashioned sintering with a press. It was fascinating to think the powder could be made into metal. the firm had been doing it for years...

@ironwolfF1

2 жыл бұрын

Oddly enough, it was the Soviets that birthed this manufacturing technique (originally high precision casting) ..... Why? The Russians were denied access to Western precision (e.g. - CNC) machine tools for their defense / aviation industry. Yeah, Soviet aircraft were heavier than their western counterparts, but it was sintering let them stay in the game.

@jebise1126

2 жыл бұрын

pressed and heated on right temperatures... fascinating stuff indeed

@jebise1126

2 жыл бұрын

@@ironwolfF1 well also you can mix materials you cant mix in casting.

@Jreb1865

2 жыл бұрын

It's been used in the firearms ammo business for years making specialty ammo...

@agentoranj5858

2 жыл бұрын

@@Jreb1865 Barnes Varmint Grenades for example, made from sintered tin. The way they turn back into dust on impact gave me a false impression of how suitable sintering is for making high-wear parts.

Very interesting. I also love the fact your going in depth on things like this. There are so much information of attachments of old days and new. Especially suppressors

The Lewis is my favorite pan fed machine gun and I nearly choked on my coffee when I heard "Lewis gun cooling system. Also we should convert ar15 hand guards to use the Lewis gun cooling system.

@marmite8959

2 жыл бұрын

I'm getting surgery to convert my foreskin to use the Lewis gun cooling system

@fredbecker607

2 жыл бұрын

@@marmite8959 so it works on stubby barrels too?lol

@marmite8959

2 жыл бұрын

@@fredbecker607 greater girth; better airflow

@scrubsrc4084

2 жыл бұрын

@@marmite8959 increases rate of fire?

@RaDeus87

2 жыл бұрын

FYI: Russia has a machinegun that uses lewis-style cooling.

This is so cool and makes my nerdy brain go "ooo, aahhh." Also, I believe relatively high cobalt alloys are used in some of the extremely high temperature areas on jet engines, like the monocrystalline turbine blades--which if you want to see cool manufacturing, look into those. Learned about it from my dad (engineer at Rolls-Royce), so memory's a bit fuzzy, but I believe they have these teensy-tiny cooling channels that are actually formed during the crystalization process, since they're too small and too complex to drill them out.

@ZE0XE0

2 жыл бұрын

interestingly enough the major issue with the quality of products made from laser sintering is the grain structure. The issue ends up being that the grain structure is directionally oriented, and therefore weak in specific directions. It wont be an issue on a product like this, but high strength applications it can struggle to meet requirements.

@bradedwards3438

2 жыл бұрын

Recovering jet engine designer here, and yes, modern jet turbine blades aren't so much manufactured as they are grown. What I learned doing that for a living is that there is no such thing as impossible, only too expensive.

@paleoph6168

2 жыл бұрын

"This is so cool and makes my nerdy brain go 'ooo, aahhh'" "Ooh aah, that's how it always starts. But then later there's running and then screaming."

@stevenclark2188

2 жыл бұрын

He did mention it not being made from Inconel which is a family of high-temp alloys used in applications like jet engines. Most formulations include at least some cobalt along with the nickel and chromium. So maybe that's what you're talking about?

@AsbestosMuffins

2 жыл бұрын

they use lasers to burn channels in, I've handled enough of them at a job recycling aircraft scrap. pure cobalt parts are insane, they're like as tough as titanium and lighter than aluminum

Darn you, Ian, now I'm down a rabbit hole of learning about different 3D metal forming processes...SLS, DMLS, DMLM, SLM...so much for getting any more work done this morning.

cons: burns a pattern into your hand when you touch it. pros: the pattern it burns into your hand looks neat

@PosranaRegistrace

2 жыл бұрын

Ribbed for her pleasure...

Very cool design! But I do have one pendantic correction, as someone that works in metal 3D-printing professionally. "Sintering" is a misnomer in this instance, a carryover from the older style of manufacturing that's been around since the 80s. This was made using what is known as "Selective Laser Melting", or more broadly just "laser powder bed printing". Sintering is a process where the powder is mixed with a binder, and then the laser heats the material until it gets just barely hot enough to get soft, which under an inert atmosphere causes it to stick together. (You can actually see this in action without the inert atmosphere, if you take some copper powder, and put it in your oven around 400-450°F, it will turn into a solid chunk) However, this produces "green" parts, which then need to be heat treated under extremely high atmospheric pressures in order to "squish" out all the gaps and fully fuse the material to the final product, in a process called "Hot Isostatic Pressing" This is a time consuming and expensive process, and induces quite a bit of shrinking. That shrinking means that there is an incredible amount of math needed to be able to overbuild parts just enough, that they shrink to dimension and get parts with close dimensional tolerances. This process is still used today in parts like sintered-metal cogs or turbine impellers, but does not lend itself to the exacting dimensional requirements on very complex parts in modern additive manufacturing. Enter modern laser powder bed. In modern systems, like the ones used to produce this part, the laser runs much hotter, and instead of sintering, it actually melts the powder to liquid, much more akin to arc welding. This produces parts that are 99% dense or better straight out of the machine, which is on par with forged or billet material, and most metals can be then heat treated or machined just the same as traditional billet or cast material. And what is more, it allows the print to hold incredibly close dimensional tolerances compared to other printing methods. The melt pool established by the laser is around 100 microns across, (0.0039"), and the layers are typically 40-60 microns thick, so very fine detail and geometry can be produced without the need for post-machining to cut them in after the print. For suppressors, this means that you can make the bore a very specific diameter, and have it be functionally perfectly concentric with itself. The only limitation to concentricity is on the mounting threads, which do still need to be cut in after the fact. So yeah. Long way of saying, sintering is not really used in industrial additive manufacturing anymore, as it has been supplanted by other, newer methods! (For some other super cool new additive technologies, take a look at cold-spray printing, or Directed-Energy-Deposition systems. Both super cool methods to build very large parts very fast, albeit with looser tolerances)

@MediumRareOpinions

2 жыл бұрын

Genuinely interesting read, I do a little work with lasers myself but my area is reductive use, I know little but am quite curious about additive processes

Coming soon, a design that in addition to the suppressor also acts as the gas system heat management as a full hand guard design, inevitably looking even MORE like the Lewis.

@rhubarbpie2027

2 жыл бұрын

Using this as the heart of an integrally suppressed barrel/ upper receiver would be neato burrito.

@bruceinoz8002

2 жыл бұрын

Mr. Lewis was also clever with his use of a "clock" spring to drive the op-rod. Being essentially outside of the gun, it was not subjected to the sort of heat transfer found in drsigns where the spring is inside the op-rod. A minor point, perhaps, if you have a compr4hensively stocked spares kit, but...... 3D "printing" / sintering, offers the ability to not only form the inside with the outside, but to texture the exterior to increase the effective surface area, thus improving heat dumping. .

@ricepresident2990

2 жыл бұрын

I can imagine a future where every gun looks like a Lewis gun, and it’s beautiful.

It reminds me a little of the way Gatling guns fell out of use for quite a while until the multiple chamber and multiple barrel ideas came back around in aircraft weapons.

@joshuahadams

2 жыл бұрын

Got me wondering if Maxim-based designs are in official use anywhere now.

@Deridus

2 жыл бұрын

A concept that I've been meaning to study is how much time can any given barrel have bullets flying through it before being effectively worn out. I remember reading about it a long time ago, something like most barrels can have something like 10 to 12 minutes of actual use before they wear out. When you consider that a bullet flying through an 18in Barrel takes approximately 0.05 Seconds, that means it would take roughly 12000 bullets to ruin the barrel or some such. With a Gattling gun, you just decreased the wear and tear by however many barrels you addred. While the wear caused by the individual bullet is the same, the fact that it is spread out over, say, 8 barrels, is not to be dismissed. Imagine if this supressor was attached to every barrel of a Gatling gun... Not saying it would be safe to touch, but I wonder if that would work.

I can't wait for laser sintering (and other metal 3d printing techniques) to become affordable enough for hobbyists (I'm sure they'll still be in the 4 digits but right now they're more like 6 digits). The amount of cool stuff you can make without being bound to the capabilities of a lathe/mill is basically endless.

@EnterTheFenix

2 жыл бұрын

Here in New Zealand we have a company thats been lazer sintering titanium and Inconel QD suppressors for about 5 years now. pretty excellent products.. quiet and light, the Inc cans are rated for full auto

@Veldtian1

2 жыл бұрын

There's Desktop Metal and a couple others out there with 'shop unit' level printer systems for less then 100K that can do this level of work, it's cool as hell.

@Rabbitflyer5

2 жыл бұрын

If they can get the strength on-par with machined parts, that'll be the final death-knell for gun control.

Interesting. The same alloy combination that has been used in the combustor section of a lot of jet engines. The barrel should melt before the suppressor does.

Such accessory reviews are so cool. Keep them coming!

What a great invention. After your mag dump, you can also use the suppressor to cauterize wounds, fend off enemies, or warm up a meal.

Damn, I misunderstood the title and thought you're going to put it on a Lewis

Radical! To the max! Tubular!

This thing is just so cool, the manufacturing and design is just amazing

Thx, Ian, for keeping us up with developing/state of the art firearms technology--a great adjunct to "Forgotten Weapons"!

The beginning demo with constant audio gain was very informative!

Cheers Ian and thanks Radical Defense.

Man Laser Sintering is so cool.. FUTUUUUURE

That's awesome that someone from shot show actually sent you something! I feel like every year we hear a bunch of KZreadrs talk about how they were promised something at shot show that was never delivered, so kudos on them

@con6lex

2 жыл бұрын

I would think FW is one of the larger channels, so that helps. Also, Ian does such an intelligent review, instead of “gee whiz new toyz”.

Thanks for another great video Ian. The explanation of laser sintering and how that was combined with technology from the Lewis gun was fascinating. The knowledge and your presentation of it puts you at the top of your field.

Fascinated by the clever design and manufacturing techniques. Brilliant! 😎

It doesn't seem like the technology is why that particular suppressor costs so much. They have a full auto rated suppressor made of sintered titanium that come in at $900. The nickle and cobalt used for your sample, depending on the alloys, may be a big part of the price. I would really like to see what would happen if the cooling design made its way to their integrally suppressed upper. The handguard on my Gemtech Integra can get a bit 'warm' with extended use.

@DerekIcelord

2 жыл бұрын

R&D costs have to be factored in. R&D doesn't bring in any money, so the price of the product has to be increased to pay for it. Also, full auto rated is not even close to the same thing as belt fed rated. If you read the fine print, "full auto" means you dump one 30rd mag in full auto then slow down.

@chemistryofquestionablequa6252

2 жыл бұрын

The price is going to go up too. Russia supplies the world with most of it's nickel and has now stopped exports.

@lukerickert5203

2 жыл бұрын

The powders are crazy expensive, as are the machines to print them.

@leadcloud

2 жыл бұрын

It's not so much the technology, as the time. These prints are pretty slow, as high-nickel alloys require quite a bit of energy input to melt completely. To print one of those suppressors alone on a plate would probably take around 2 days, add more time for more being printed at once. It takes quite a few machines to be able to establish economy of scale, and right now these are $800k-$1mil machines, so startup overhead is really high

@speedisgood71

2 жыл бұрын

3D printing objects on a commercial scale is also relatively slow and time consuming compared to other methods so that cost also has to be factored in

SLS is indeed crazy expensive, no matter the target market of the component - it would have been nice to hear the actual price tag rather than the vague quantification of "really quite expensive"

@alun7006

2 жыл бұрын

It's probably "if you have to ask, you can't afford it" expensive.

@truckerjesus8633

2 жыл бұрын

Ah yes, the Senate Launch System, the first rocket to be powered purely by pork.

@andan2293

2 жыл бұрын

In some cases it's less expensive than trying to make the part using conventional methods. And often it's not expensive at all because it's the only way how to make the part. Being "expensive" is always matter of comparison. Is a "$1000 thing" expensive? Depends what is it, doesn't it?

@danpatterson8009

2 жыл бұрын

Probably because it's not on the market- this was a demo for the military. The Radical Firearms website lists a titanium laser-sintered model for $900.

@trentonarney6066

2 жыл бұрын

The old if you have to ask you can't afford it.

This was a very interesting upload, Ian, and you explained the manufacturing technique and the functioning very well. Thanks.

On a practical note, how do you clean this can. Cans do get gummed up, and need to be cleaned. That's why Gemtech style baffles are so popular, is because you just unscrew the core, scrub it, screw it back together.

@rollastudent

2 жыл бұрын

But how many gemtech rifle cans come apart for cleaning? How many of anyone’s rifle only cans come apart?

had no idea that metal printing had advanced this much. this honestly looks amazing

@Ontheregz

2 жыл бұрын

Sintering, not quite the same as 3d printing but the principal is the same.

@Willy_Tepes

2 жыл бұрын

You should see what they are doing on the nanometer scale.

Nice to think of long-dead Lewis gun engineers being validated with such good engineering a hundred years later

Great presentation, thanks, I appreciate both the info and the heads-up.

Thanks Ian. As usual your presentation is excellent... and fun to watch.

Very impressive. Who would have thought an uncut dong could be capable of such cooling potential . Bravo!

@NikovK

2 жыл бұрын

Can confirm the six hundred round mad minute capability.

Really cool indeed Ian, good spot. Interesting that the 7.62 is a decibel lower than the 5.56 tube

That is really freaking cool! Thanks for showing us.

Wow. To be able to shoot a 5.56 rifle with no ears and it be that quiet and maintain a relatively cool temp. Great tech, thanks for sharing. Love the channel too, been subscribed for years.

This is about the coolest thing ive seen new technology-wise lately. I really wonder what more can be produced with this production technique. Greetings, Jeff

@Aperson156

2 жыл бұрын

Heh. Coolest.

@vagrancy

2 жыл бұрын

I think I saw this tech used in producing rocket engine nozzles. Really cool stuff.

All that is old is new again. Very neat.

It's absolutely wild to think that item is an alloy of one complete unit. Imagine you gave that to an engineer 70 years ago and told them "work out how I built that".

@andresmartinezramos7513

2 жыл бұрын

@@ALovelyBunchOfDragonballz And they wouldn't be far off

Mind boggling. Great video Ian thank you!

"Modern problems require vintage solutions."

In "industrial" application, we call this "affect" venturi This is How and Why air compressors can adapt vacuums, and why hot at one end with open at the other with designed sizing causes a heat pump affect. With a good design and or slight barrel modifications this could work to provide additional barrel cooling?

Laser Sintering is *such* a cool tech, and I love seeing practical uses for it!

Wow. Love that combination of simple, old principles with new modern procedures. Very interesting.

For anyone like me that didn't recognize the rifle immediately, but wondered what that M11 was doing to that AR15, that is the MAX 11/15. What a strange rifle.

So, just like the escaping gas from shooting inspired Browning to design his first machine gun, the same expelled gas can be used to cool the suppressor. Now that's what I call recycling!

Damn this one was a particularly interesting, thanks Ian!

Love the fact it's a really brilliant bit of kit and the description is "it's, well, a tube."

I would have loved to get a visual display of the venting working while firing, using a smoke pellet. But that would require a calm day, and Arizona Sun with no breeze is a hell I wouldn't inflict on anyone

@ScottKenny1978

2 жыл бұрын

Not to mention the probability of finding a still day... Last time I was in Arizona, there was always a 10mph breeze going.

One cool thing that the company could think about as a one-off would be to print one with a quarter or removed, to make it a cutaway without having to cut anything.

@philhaag2178

2 жыл бұрын

We have done that. We display them at trade shows and demonstrations.

Its a muffler, wrapped in a Venturi, and 3d printed with ground up post 64 Winchester 94 receivers!

Another feature to assist with the cooling is the bubble-textured outer surface. What a really amazing combination of awesome tech in that 1 little device!..

I would love to see a true temperature comparison test between this suppressor and a more common suppressor design, like a Sandman L. How much of the cooling capability of this suppressor is simply because it weighs 2.5lbs? That's basically twice the weight of - generally - similar sized suppressors. It would be awesome if this truly provides some amazing cooling capability, but the cynical side of me wonders if it's simply the high end materials and significant mass.

@SurmaSampo

2 жыл бұрын

Increasing mass increases cooling time unless you also increase the surface area to match. There is no free lunch here.

@tiortedrootsky

2 жыл бұрын

Russian PKP Pecheneg is mostly PK with different barrel. The thinner portion of this barrel from gas block forward uses longitudinal channels for air, with venturi effect. As a result it can shoot 600 rounds without changing barrels. They dont carry second barrel with it! Also the dispersion and point of impact doesnt change as much. Using venturi is a genious idea!

@jimyeats

2 жыл бұрын

@@SurmaSampo Good points. I would still like to see real times side by side with another suppressor just out of interest.

@SurmaSampo

2 жыл бұрын

@@jimyeats That would indeed be cool to see.

@ExpatriotSilencers

2 жыл бұрын

It does work. I've done the testing. However it is a tricky balancing act to extract the most heat out of the can. A high rate of fire is required to generate high cooling flow ... which produces an obvious conundrum. There there are the issues of surface area and turbulence inside the cooling passages and how they effect air flow. Then we get into heat transfer through the metal itself. All this adds up to a VERY complicated design.

Unrelated to this video I have a question for you. In your No5 Jungle Carbine video you shown one rifle with a stamped rear sight, I'm curious what the date of manufacture was? I have been looking at as many examples of No5 rifles I can and I have only saw the stamped rear sight 3 times in about 70 rifles observed and I have only noted it on rifles made by ROF(F) rifles made between the dates of 12/44 and 1/45, I am trying to figure out when they started this sight and when they ended it so I can estimate how many examples have it as it seems like very few. Thanks

Yes!!! Great video! More of these !

As a starting point, impressive as hell. I can’t wait to see how this develops. Really neat.

That's an awesome idea never would have though to integrate the lewis gun concept into a suppressor. Doesn't the PKP version of the PKM utilize this concept?

amazing.......really simply ingenious and amazing.... Haven't had ..."WOW" moment in a long long time but I am simply wowed.....finally some advances in suppressor technology. On a side note, I WOULD actually donate if you can find some host firearm to get it up to 1400 degrees.

when the suppressor is more sturdy than a bunch of guns. love it. this is the kinda esoteric, niche stuff i love learning about on this channel!

Well Ian, I did enjoy the video. I am not sure why, but I watched the entire thing. I could not stop. This was way more interesting then anyone would think it could be. Thanks. More Please!

Incredible engineering and manufacturing. Nickel and cobalt are strategic metals so must cost a mint based on current world events / sanctions. PS - the Dyson of suppressors

@sierraecho884

2 жыл бұрын

Well you can always remelt them xD

I was thinking of developing a Lewis-style cooling shroud for an American 180. How cool would it be to have an integral suppressor?

@jwcross6110

2 жыл бұрын

Like a Lewis style cooling system on a Honey Badge SD… 🤯

@Eduardo_Espinoza

2 жыл бұрын

Same

@AcidBaseGaming

2 жыл бұрын

Man's on his way to New Vegas.

Wow, amazing application of laser sintering, and to draw inspiration from the Lewis gun, old meets new!

very interesting. and yeah i do like taking existing ideas and improving on them not only just in design but also Materials and Manufacturing. there's things we used to do that could be very useful today, just in a slightly different form.

The idea of a rifle has not changed since the StGw44 was introduced, the idea of a brass cartridge didn't change much since Floberts design in 1845. And while the NGSW program might slightly innovate this or get scrapped as army programs often do, the real innovation in the last 60 years wasn't in firearms. Firearms got slightly better as one would expect, but red dots, scopes and suppressors are the real innovation, the real driving factors in combat effectiveness. Shoot, move, communicate. And attachments and surrounding technology improved this much more than yet another AR-15 variant for the military.

How long until Dyson comes out with electrically-cooled suppressors? Just a tiny fan inside lmao

@michaelkullas2031

2 жыл бұрын

Dr. Shoosh. A long time ago.

Thank you , Ian . 🐺

Great stuff - interesting that the gas flow technology on the Lewis gun was so clever, I had no idea!

Very reasonable why every game that has LMG can use suppressors especially like modern warfare 2019.

From a scientific standpoint, this suppressor design is really fucking cool.

@ExpatriotSilencers

2 жыл бұрын

Thanks, I thought so ... when I designed it in 2005.

The knowledge that this thing connects the ancient concept of cooling principle with high-end processing of modern alloy metal... It's so incredibly charming. Even the design is so beautiful and eye pleasing.

That is such a super cool design!

How do you clean it internally?

@ForgottenWeapons

2 жыл бұрын

Ultrasonic bath. Not that 5.56 cans really need cleaning.

@sixtyinsix

2 жыл бұрын

@@ForgottenWeapons Interesting, thanks!👍

@digitalnuggets3866

2 жыл бұрын

Doesn't really need maintenance

Could you please write temperatures in C on screen, It's not hard to convert, but constantly needing to pause and rewind the video to convert is a bit annoying.

@christophersmith6510

2 жыл бұрын

For high numbers, just divide by 2/ it’s close enough.

@JoachimElmesioo

2 жыл бұрын

@@christophersmith6510 Didn't know that. Converting pounds to kilograms is easy enough fast, didn't know there was an easy way for temperature.

@christophersmith6510

2 жыл бұрын

@@JoachimElmesioo doesn’t work so well for weather temperatures, but it’s fine for 500 degrees or higher

This is a super innovative and fascinating product

This is amazing. Thank you

Would love to see more videos on old and new weapon attachments like old scopes etc. Seeing how the old huge night vision scopes in depth would be awesome.

I assist in development in additive manufacturing technologies, and the ability to create complex internal geometries is a huge benefit of AM and it’s awesome we get to see it in action now

yeah, some unorthodox aux gear for weapons, I love to see that! Also, I have very limited personal experience with SLS printers so it may not be that important but I would love to congratulate the RD manufacturing folks on that beautiful finish on that suppressor, it just looks fabulous.

Very very cool, both literally and figuratively

Excellent video a great example of what can be done with modern technology. I’d love to see the next generation at work!

3:59 The cooling will also be better on long bursts than single shots, because of the relatively continuous airflow due to successive muzzle blasts. You also have the bullet's low-pressure wake, which is also going to help pull more air through the cooling channels.

The fact alone that you can make a complex device like that as a monolithic piece blows my mind!

Slm printing is amazing, saw one in action during college in 2020 before the pandemic.

Now that round of fire both looked and sounded good.

I like the KAC suppressor aesthetic they went with on the outside as well.

That's amazing. And it looks great too.

I wish my 249 had one, man that thing made my ears ring. Yes, I had ear plugs, no I didn't always get the chance to put them on in time. Still, loved my 249 and still remember her serial number. Wish I could buy one for myself with this suppressor.

Great content!! Thank you

I love Ian's projects

I remember hearing Sig was doing some prototyping with similar tech a few years ago, it's awesome to see how much it has progressed. This should for all intents and purposes dramatically change how suppressors, and many other things, are designed. You could get some really interesting internal geometry with laser sintering.

Powering up your suppressor's cooling mechanism sounds like a video game mechanic for an exotic gun.