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Thread: First Look: Gen4 Glock 20 10mm Review

  1. #1

    First Look: Gen4 Glock 20 10mm Review


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    Many devout fans of the 10mm love their Glock 20, myself included. So when I heard the Generation 4 version was released, I jumped at the chance to pick one up. I really like the Gen 4 grip on my other Glocks and I thought it would be especially helpful with the recoil of some hot 10mm rounds. Turns out I was right.

    I ordered the gun the day it came out and had it in my paws the next day. I cleaned it, lubricated it to specs, turned the rear sight around (I don't like the Glock sight picture), and patiently waited for the weekend to put some rounds through the beast.

    Pros:
    -Glock grip angle helps absorb the 10mm recoil (one man's opinion)
    -Cost: many other 10mm pistols sell for double what the G20 sells for
    -Accuracy: the gun is more accurate than I am
    -Positive ejection with both hot and weak loads
    -Easy to maintain
    -Gen 4 grip surface helps keep a firm grip on the gun, even when your hands are sweating
    -Low bore axis helps tame the recoil
    -Lots of aftermarket support (holsters, sights, ect....)
    -100% reliable so far

    Cons:
    -new to the market so heavy recoil springs aren't yet available
    -the finish isn't the old glossy Glock finish of a few years ago so finish durability is unknown

    Heres a video I did to show the firearm in action. I do some shooting, demonstrate the ejection pattern with hot ammo, a 15m group, table top review (with part numbers), and some chronograph testing.



    Chronograph data:

    Temp––90 degrees with 80% humidity

    Prvi 180gr JHP: 976fps, 381ft/lbs energy
    Underwood Ammo 165gr Gold Dot JHP: 1372fps, 689ft/lbs energy

  2. #2
    Looks like a fun time, I have been on the fence about picking up a glock 10mm, I like the 10mm (S&W 1006 & 1076) and my Glock 19 butttttt. I just dont know.

  3. #3
    I might have to get back into the glock 10mm scene.
    I loved my gen 4 17, and wish I wouldn't have sold my 20SF.

    Sent via mental telepathy
    "Until lions have their historians, tales of the hunt will always glorify the hunters."

  4. #4
    Nice looking 10mm. I'm still hanging onto this one. It'll accompany me again at times during hunting season.



    C&L

    In spite of a bad knee, busted ankles, too many years and a slowed reaction time, I'm just as fast and dangerous as I ever was.



    NRA LIFE MEMBER

  5. #5
    Me likey... I miss my old S&W 1006. Think a G20 might be my next big pistol purchase...
    -If guns kill people, spoons made Michael Moore and Rosie O'Donnel fat!

  6. #6
    I've wanted a high capacity 10mm for some time now. Most are out of my price range but the glock 20 I can swing. I came really close to buying a gen3 SF. Then I heard the gen4 was going to be produced. I told myself that I would have it just as soon as it hit the market. Now it is here and all these FDE gen4's are floating around. I really don't care for black guns (or Glocks for that matter, lol) so I'm going to wait a couple more months to see if they will produce a FDE gen4 glock 20. If so I'm all in. If not I'll try to find a used black one.

  7. #7
    Staff Shootist Classified Feedback: 25 Silver_Bullet's Avatar
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    I am partial to the original glock design. If it's not broke, why fix it? It's more than proven it's self. I will continue with gen 3's. Just look at the problems the 9mm gen 4's had when they came out. Fixed now, but the 3's work for me, and i had no need for the upgrade. I understand if you like the changeable back straps. They could have just added that to the original design to keep things simple, then all parts would still be interchangable, but instead they made an entire new gun with the glock name, and look.

    When the 2nd Amendment speaks of a “well-regulated militia,” it means local groups of individuals operating to protect their own families, homes, and communities. They regulated themselves because it was necessary and in their own interest to do so. The Founders themselves wrote in the Federalist papers about the need for individuals to be armed.

    Gun control makes people demonstrably less safe--as any honest examination of criminal statistics reveals. It is no coincidence that violent crime flourishes in the nation’s capital, where the individual’s right to self-defense has been most severely curtailed.
    (Ron Paul)

  8. #8
    Staff Shootist Classified Feedback: 25 Silver_Bullet's Avatar
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    Double Post! LOL
    Last edited by Silver_Bullet; 06-22-2012 at 01:14 PM. Reason: Double Post

    When the 2nd Amendment speaks of a “well-regulated militia,” it means local groups of individuals operating to protect their own families, homes, and communities. They regulated themselves because it was necessary and in their own interest to do so. The Founders themselves wrote in the Federalist papers about the need for individuals to be armed.

    Gun control makes people demonstrably less safe--as any honest examination of criminal statistics reveals. It is no coincidence that violent crime flourishes in the nation’s capital, where the individual’s right to self-defense has been most severely curtailed.
    (Ron Paul)

  9. #9
    we heard you the 1st time...LOL


    C&L

    In spite of a bad knee, busted ankles, too many years and a slowed reaction time, I'm just as fast and dangerous as I ever was.



    NRA LIFE MEMBER

  10. #10
    USArmy 82-85, USMC 86-92 Senior Member Classified Feedback: 48 jakerson9's Avatar
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    Thanks for the review -
    That seems like such a huge variation in the ammunition ballistics. That Privi ammo almost looks like 40 S&W ammo. I wonder about their assembly line...

    Prvi 180gr JHP: 976fps, 381ft/lbs energy
    Underwood Ammo 165gr Gold Dot JHP: 1372fps, 689ft/lbs energy

    If the bullet weights were both 158gr, it would be almost like the difference in shooting 38sp vs 357magnum from the same revolver. Was there a huge difference in how the ammo felt? Did the (comparatively underpowered) privi ammo cause any issues?

    Thanks
    * All firearms are always loaded. * Point firearms only at what you intend to shoot/destroy/kill. * Finger off the trigger until you are ready to shoot * Be sure of your target and what is behind it *

  11. #11
    Quote Originally Posted by jakerson9 View Post
    Thanks for the review -
    That seems like such a huge variation in the ammunition ballistics. That Privi ammo almost looks like 40 S&W ammo. I wonder about their assembly line...

    Prvi 180gr JHP: 976fps, 381ft/lbs energy
    Underwood Ammo 165gr Gold Dot JHP: 1372fps, 689ft/lbs energy

    If the bullet weights were both 158gr, it would be almost like the difference in shooting 38sp vs 357magnum from the same revolver. Was there a huge difference in how the ammo felt? Did the (comparatively underpowered) privi ammo cause any issues?

    Thanks


    Oh yeah----the ammo feels a lot different. All ammo functioned 100% and had no issues. I'm a fan of chronographing all loads since many manufacturers lie bigtime. But, the 10mm has 'light' loads like the Prvi and 'full' loads like Underwood/Cor Bon/BB/ect... The reason the FBI went away from the 10mm was many agents just couldn't handle the full power loads; hence the development of the 40S&W.

  12. #12
    You say that you have a gen 3 SF model as well. Does it feel smaller in the hand than the gen 4? Have you tried to measure them? I am very curious because I have smaller hands and the only glock that feels fairly comfortable to me is the 19.

  13. #13
    I'm a new owner of a Gen4 G21 and now have my sights on the G20! Nice review... thanks!

  14. #14
    I've been considering getting a 10mm Glock myself. But I'm like silver bullet, I'll take a Gen 3. I've just heard to many problems with Gen 4 & All my 3's have been totally reliable. The new texturing could be nice with hot rounds though!

  15. #15
    Quote Originally Posted by Snap Cap View Post
    You say that you have a gen 3 SF model as well. Does it feel smaller in the hand than the gen 4? Have you tried to measure them? I am very curious because I have smaller hands and the only glock that feels fairly comfortable to me is the 19.
    I did measure them actually because everyone was saying it feels different but it didn't to me.... They're the same size.

  16. #16
    Nice review. Ever since reading about the Glock 20 and watching some videos of the gun, I have been dead set on getting one.
    If only tax time would hurry back around.

  17. #17
    I want one so bad but, it doesn't really fit a role. It's just a want gun.

    I think a gen 3 g20 with a 6 inch ported barrel would be an awesome toy. So many guns, so little money.

  18. #18
    Once I putt it through some more T&E it may take the place of my nightstand handgun loaded up with some Underwood 155gr JHPs. At the speed those are moving at, overpenetration is greatly reduced over 9, 40, or 45 and the energy they'd dump into a two legged adversary would be awesome. But, I'll have to put a bunch more rounds through it before it takes the place of my current nightstand gun.



  19. #19
    I want a gen 4 Glock 20 something fierce. Nice Review

  20. #20
    Two of these are in my immediate future ... i.e. as soon as I can find them and for a fair price ;-)

    Thanks for the review and the vid!

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