Glock 21 Gen 4, 45ACP, Basics, Field Strip, Clean, Lube, & Reassemble

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Glock 21 Gen 4 45ACP Basics Field Strip Clean Lube & Reassemble
Remarkable for its accuracy and light recoil, the GLOCK 21 Gen4 delivers the legendary stopping power of the .45 AUTO round with 10/13 round magazine capacity. The Modular Back Strap design on the G21 Gen4 lets you instantly customize its grip to adapt to an individual shooter's hand size. The surface of the frame employs the new scientifically designed, real-world-tested, Gen4 rough textured technology. Internally, the new GLOCK dual recoil spring assembly substantially increases the life of the system. A reversible enlarged magazine catch, changeable in seconds, accommodates left or right-handed operators. The Gen4 system is the perfect complement to this iconic .45 caliber cartridge.
Length: 204 mm / 8.03 in. Width: 32.50 mm / 1.27 in. Length Between Sights: 172 mm / 6.77 in. Height: 139 mm / 5.47 in.
Barrel Height: 32 mm / 1.26 in. Barrel Length: 117 mm / 4.60 in.
Unloaded: 830 g / 29.30 oz. Loaded: 1085 g / 38.30 oz.
Barrel Rifling: right hand, octagonal Length of Twist: 400 mm / 15.75 in. Standard: 13 round mag / 10 round Optional

Пікірлер: 67

  • @gregorycastro6548
    @gregorycastro6548 Жыл бұрын

    You did a great job ! Very detailed and non repetitive . Thanks

  • @benediktpoeschl4878
    @benediktpoeschl48782 жыл бұрын

    Thanks man, you gave me good advice to clean my gun more efficiently. Great work, you deserve more views!

  • @glockfanboy4927
    @glockfanboy4927 Жыл бұрын

    Glock perfection....... simply the best

  • @BDLrome
    @BDLrome4 жыл бұрын

    3:20 That has to be the smoothest disassemble of a gun I’ve ever seen.

  • @YouKnowChatta286

    @YouKnowChatta286

    2 жыл бұрын

    You haven’t seen anything then wtf. That was a basic takedown

  • @tmac909
    @tmac9092 жыл бұрын

    My first Glock was the Glock 17 9mm I recently acquired a Glock 21 45. I haven’t only heard positive reviews about it.

  • @shunyataberlin
    @shunyataberlin Жыл бұрын

    1:42 love that transition 😁 love that gun, wish i was a yankee to play with it as i please

  • @adanrenteria3668
    @adanrenteria3668 Жыл бұрын

    Can’t wait to get mine in a few days👍🏼

  • @rickymajor4903
    @rickymajor49034 жыл бұрын

    Great video boss man. You are one thorough cleaner. I just brought my glock 21 45acp brand new for 599.99 plus tax. Fired roughly 20 to 30 rounds into it at the range. I may send it to you so u can clean it lol love your cleaning technique

  • @IvanHernandez-hd2si

    @IvanHernandez-hd2si

    3 жыл бұрын

    100 rounds sounds decent... Just my thought.. Anyway Glocks are really good guns. 👍

  • @richardcopeland3938
    @richardcopeland393828 күн бұрын

    At 3:35 of video. I pull the trigger, pull the slide back with one hand, then the two slide lock pins down with the other hand but the slide will still not release. Any ideas why?

  • @82luft49
    @82luft497 жыл бұрын

    An excellent example as to how to clean a Glock, or any other firearm for that matter. Your cleaning method was a lot better (and simpler) then most of the other videos that I watched on cleaning a pistol. I learned a thing or two by just observing your procedure. I plan on watching it several more times just to get it down pat. I own the Sig P320 45 full size. Outstanding gun, but it only holds 10 rds. I'm seriously thinking about adding the G21 which holds 13 +1 rounds to my inventory. Your comments about the 21 just about has me sold. Thanks. I subbed by the way.

  • @AlansFirearms

    @AlansFirearms

    7 жыл бұрын

    Thank you for the great comment, I am happy my video was a help. Think about an extended mag for your gun. IT just might help.

  • @82luft49

    @82luft49

    7 жыл бұрын

    You're right. Didn't think of it. Just ordered one from Gun Mag, Thanks

  • @haileymaya2030
    @haileymaya20305 жыл бұрын

    Question if I wanted to replace the factory trigger on the Glock 21 Gen 4 what can I replace it with and what is the best one I would like your opinion thank you sir

  • @AlansFirearms

    @AlansFirearms

    5 жыл бұрын

    I have replaced the triggers on many Glocks and I will say the best trigger of all of them is the original Glock trigger.

  • @stephenalbanese2860
    @stephenalbanese28607 жыл бұрын

    Great Video - Question for you. Just got a new glock 19 gen 4. shot a couple hundred rounds right out of the box. I know what I did is unsafe and I was sure the gun was unloaded as I had to dry fire. After I dry fired and before disassembly I unconsciously placed an empty mag back into the frame. I than proceeded to field strip the glock. I realized the magazine was still in the frame after the slide was already removed. Will field stripping & reassembling the glock without removing the magazine cause any damage to the gun?

  • @AlansFirearms

    @AlansFirearms

    7 жыл бұрын

    You should be ok

  • @Caderic

    @Caderic

    4 жыл бұрын

    Putting an empty mag in the gun and taking it down isn't safe. Putting your hand all over the end of the barrel like this guy did several time in the video is unsafe!

  • @keithkent8126
    @keithkent81267 жыл бұрын

    I noticed Alan you never use a bore brush or snake is there reason for that ? Just asking ! You always do fine detail cleaning . K

  • @AlansFirearms

    @AlansFirearms

    7 жыл бұрын

    only when it needs it

  • @johnfarrar6715
    @johnfarrar67152 жыл бұрын

    Good video except for the dry firing. You should be using spring loaded snap caps

  • @tangtang7051
    @tangtang70514 жыл бұрын

    I just bought that awesome gun. Even though it's new I don't know how long it's been sitting in the store. I was wondering. Do I have to oil it up before I use it in the range, or can I just go head let it rip as is? I forgot to ask the store owner about oiling it.

  • @IvanHernandez-hd2si

    @IvanHernandez-hd2si

    3 жыл бұрын

    Should always clean & oil a new gun before shooting it. Nothing bad will happen if you forget... It's making sure you take care of your new gun by following simple steps.

  • 2 жыл бұрын

    Where can I buy your cleaning kit?

  • @wayneodle6876
    @wayneodle6876 Жыл бұрын

    Thanks, nice job, not too fast or slow. Why is the 40 mm a miserable round ?

  • @SeniorDuctTapeAdvisor

    @SeniorDuctTapeAdvisor

    7 ай бұрын

    Because it's about 30 mm's to big?

  • @healix8526
    @healix85266 жыл бұрын

    Sweet blue screen backing.

  • @AlansFirearms

    @AlansFirearms

    6 жыл бұрын

    Thank you ... green screen

  • @mmabagain
    @mmabagain5 жыл бұрын

    Did you say hexagonal rifling? I thought it was polygonal.

  • @AlansFirearms

    @AlansFirearms

    5 жыл бұрын

    yes I miss spoke. thank you for the correction

  • @delasalletaftavenue9546

    @delasalletaftavenue9546

    4 жыл бұрын

    Actually, “poly” means many. Pentagonal means five-sided. Hexagonal means six-sided. Septagonal is seven... Octagonal is eight... etc. penta-, hexa-, octa-, etc qualify as polygonal without specifying how many sides. Polygonal means multiple-sided, or multi-sides. CLEAR AS MUD?

  • @Caderic

    @Caderic

    4 жыл бұрын

    Go back to 3 grade math. A polygon (polygonal) is ANY shape strait sides. That means triangle, square, rectangle, parallelogram, dodecagon, and even hexagon. Just not a circle or oval, or the like. That being said, the Glock 21 has octagonal rifling.

  • @raymonddowd3245
    @raymonddowd32455 жыл бұрын

    I let a red haired lady shoot my glock 21 she is 4ft 10 ft tall maybe 100lbs she refused to give it back! I had to buy another one luckly i found one the next week for 400.00 nib. So if you see a little red head evil woman just remember she may have a glock 21 and she is a very good shot.....

  • @AlansFirearms

    @AlansFirearms

    4 жыл бұрын

    that is funny

  • @jamesmatthews7548
    @jamesmatthews75482 жыл бұрын

    10mm is waaay more powerful

  • @IvanHernandez-hd2si
    @IvanHernandez-hd2si3 жыл бұрын

    I never got the back strips.... I guess I was sold a used glock for the price of a new glock.

  • @NekroBroly

    @NekroBroly

    3 жыл бұрын

    Which generation is it? I believe they started the back strap swaps on gen 4

  • @IvanHernandez-hd2si

    @IvanHernandez-hd2si

    3 жыл бұрын

    @@NekroBroly It's a gen 4...

  • @IvanHernandez-hd2si

    @IvanHernandez-hd2si

    3 жыл бұрын

    @@NekroBroly also I see the recoil spring is plastic.(.not the spring) I will replace it with the stronger piece...

  • @IvanHernandez-hd2si

    @IvanHernandez-hd2si

    3 жыл бұрын

    @@NekroBroly I noticed the shell casings are ejected with no force.. Maybe 3 or 5 inches away from the gun. My s&w 40 shield ejects shell casings far away. Is this normal for the glock 21?

  • @NekroBroly

    @NekroBroly

    3 жыл бұрын

    @@IvanHernandez-hd2si im looking to get the guide rail laser for my 21 and i haven't paid attention to how far the shells go. Sucks you didn't your back straps i hope you got everything else with it.

  • @BobPublicover
    @BobPublicover8 жыл бұрын

    That is some heavy piece of equipment, looks bulkier than a 1911design . I guess that would stop most perps with a shot or two. "Appearance" is often a deterrent before someone becomes a combatant with the police. Much like a K-9 does. I like to see the Police using the Beretta 92fs!! But, law enforcement agencies use extensive testing, safety, reliability, ease of use, wear, etc. before choosing the dept's weapon. Wonder if females officers have any difficulties handling it. The Glock seems to have establish a pristine record for most of these tests. Nice weapon!

  • @AlansFirearms

    @AlansFirearms

    8 жыл бұрын

    +Bob Publicover Hi Bob, Nice to see one of your post again. The 92 fs is a 9mm and the police want the 45. Stops the bad guy with 1 or 2 shots. woman can shoot this as easer as a 9mm. Thanks for the comment Bob stop by and say hello

  • @Ginganinja247.
    @Ginganinja247.7 жыл бұрын

    .40 is better than .45 and I own both

  • @AlansFirearms

    @AlansFirearms

    7 жыл бұрын

    It depends on what you are using it for. If the 40S&W is being used for fun on the range or you are carrying it for self defense as a civilian then both will do the job. But you asked what is better, for 95 % of the things you can do with both calibers I have to say the 45ACP is the all round best round. Thank you for the question.

  • @my300zx96

    @my300zx96

    5 жыл бұрын

    Its not a better round the 40 has more velocity and more energy then the 45...

  • @SpyvsSpy-yl9ip

    @SpyvsSpy-yl9ip

    4 жыл бұрын

    .40 glock 22 makes a smaller hole and has more recoil than a .45 glock 21. A .45 hp is a one hitter quitter anywhere on the human body, with less snap. Michael brown took over 5 .40 hits to the body before collapsing and dying. A .45 hp would have dropped him in 2 hits max

  • @Caderic

    @Caderic

    4 жыл бұрын

    Defend your statement.

  • @thomaspalmer7900

    @thomaspalmer7900

    Жыл бұрын

    @@SpyvsSpy-yl9ip the .357 magnum dominates the .40 & the .45!!!!!

  • @tonystreetman8209
    @tonystreetman82094 жыл бұрын

    Who taught you how to handle a firearm? Never point the firearm in the direction of anything you don't intend on shooting.

  • @Caderic
    @Caderic4 жыл бұрын

    This guy makes me cringe. What;s even more scary is it looks like he is a pilot. He is miss handling the firearm, pointing at his hand several times. Bad habits equals bad outcomes. He said it doesn't have rifling, it has a hexagonal twist specially made. First, it IS rifling. Second, it is octagonal in the 45 and 10mm. Third, it is specially made by Glock just like every other piece in the gun, but it is not a special to Glock. It has been around since WAY before Gaston Glock was even born. There are many guns made with a polygonal rifling. He also says with his cleaner, you don't have to oil the gun, then he oils the gun. It wouldn't b such a big deal if he was talking about toy cars, but he is dealing with something that has a lot of deadly potential. I wouldn't trust him with my gun, let alone in an airplane.

  • @francisgoldstien6153
    @francisgoldstien61535 жыл бұрын

    I still like the .40 I'm not watching no more your videos because you dis the 40. Also your cleaning that gun all wrong. Also left a dislike And I didn't subscribe

  • @AlansFirearms

    @AlansFirearms

    4 жыл бұрын

    Like we care. Oh and just about every law enforcement department stopped using the 40 … why …. It Sucks in this

  • @dusanmilosevich9167

    @dusanmilosevich9167

    4 жыл бұрын

    And your a virgin

  • @cloutdoors5674

    @cloutdoors5674

    4 жыл бұрын

    @@AlansFirearms just about every department huh? I only know about florida but every department in my county is carrying a glock 22 so

  • @jayrocket725

    @jayrocket725

    4 жыл бұрын

    Dusan Milosevich You’re

  • @SkyBrigidRain
    @SkyBrigidRain Жыл бұрын

    WOW!!! I had no idea it was that easy to break down and clean!!!! Is there a better slide release? I have no grip on mine so I just have to pull the slide back when reloading.

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