(Glock) Perfection Breaks – What Goes Wrong & How to Fix It

If “Perfection” is defined as a Glock, I think we have to redefine what “perfection” really means. Don’t get me wrong, the Glock is an excellent handgun (I carry them daily), but they are not bullet proof or completely resistant to the repeated battery of long duty cycles. Various parts in the handgun wear and break.

If yours hasn’t, you haven’t shot enough (or perhaps you do have the one unit of true “perfection.”)

Over at Active Response Training, Greg Ellifritz, a trainer and certified Glock armorer documents what he has typically seen go awnry in the handgun over his hundreds of thousands of rounds of experience, both shooting, teaching classes, and as the local department armorer.

The most common items to break are not surprising, given the overall generally reliable nature of the handguns. According to Greg, the most common part to break is the Trigger Spring, which connects the trigger bar to the rear housing. An easy “fix” is to move to the “NY” trigger springs, which are a standard compressed coil spring versus the stock design, but that does come at the cost of pull weight.

The second most common part to break is the locking block pin, which sits above the trigger pin helping keep the locking block in place. During prolonged usage, that pin gets battered as the barrel slams down and to the rear. Fortunately, its a easy fix, just drop in a new pin.

For the full list and for Greg’s recommended duty cycles, check out the full article over at Active Response Training. 

Nathan S

One of TFB’s resident Jarheads, Nathan now works within the firearms industry. A consecutive Marine rifle and pistol expert, he enjoys local 3-gun, NFA, gunsmithing, MSR’s, & high-speed gear. Nathan has traveled to over 30 countries working with US DoD & foreign MoDs.

The above post is my opinion and does not reflect the views of any company or organization.


  • Manolo das Dorgas

    There is no such thing as perfect only better.

    • USMC03Vet

      Love the profile image. I used that same picture way back when.

  • Edeco

    One glaring thing I’d change about my beloved G34 is I’d give them their own full length recoil spring which would last longer, rather than a G17’er.

    “But Habib*” you say “with a different part from the more popular 17, even if they last longer, you’ll prolly end up paying more and have more trouble finding them.”

    Yup. Disposable vs durable is certainly a topic. I go both ways, but long story short I know what the hassle would be and I’d welcome it for a longer lasting spring.

    *Habib P. Edeco

    • Big Daddy

      I have tried a few SS replacements and the Glockstore has some excellent ones I am very happy with.

    • RocketScientist

      “I go both ways”
      -Edeco, Mar 27, 2017

      You heard it here first, folks.

      • Edeco


  • EdgyTrumpet

    How to fix Glock:
    1. buy a CZ
    2. ???
    3. PROFIT

    • Major Tom

      Additional steps how to fix Glock:
      1. Buy anything non-Glock
      2. ???
      3. PROFIT

  • I just wish Glock would perfect basic sight design.

    • The problem with that is that sight design is variable between shooters. Where I may prefer to shoot a u-notch rear and white dot front for Irons, you may prefer three-dot. Then there are other sights which are great for different applications.

      I don’t think Glock *can* perfect sight design because the shooters themselves are too varied.

      • In the case of the Glock sights, the rear notch is incorrectly sized and needs to be deeper, as when properly aligned, the notch cuts off the bottom 1/3 of the front dot.

        I actually like the Glock white outline sights, but this defect with the dot drives me nuts, as it encourages shooting high, and there is no reason for it other then laziness in upgrading their mold tooling.

    • JT303

      No, the sights are intentionally set up that way. They are designed to be a glaring reminder that you need new sights.

    • m-dasher

      honestly, theres really nothing too bad about stock sights, they work just fine…..i personally dont like them….but it in no way hampered my shooting ability.

    • A Fascist Corgi

      I like the sights, the finger grooves, the grip angle, and the trigger pull on stock Glocks. Stop complaining.

      • Well, I also like Corgi’s, so at least we have that in common.

      • USMC03Vet

        Is that because jet fuel doesn’t melt glock sights?

      • isn’t this the reverse of “Stop liking what I don’t like”? Seriously, get over yourself. Plenty of people dislike things on plenty of stuff.

        You like Glocks the way they are. Great, bully for you. Buy them to your heart’s content.

        Meanwhile, the rest of us will continue to express what we don’t like about them in an effort to maybe get something out of Glock that appeals to us, or at the very least ensure that new shooters aren’t left with only one side of the opinion scale.

        Buying a gun is like buying shoes or a car: you buy what fits you and fits your needs. Sure, everyone could be fine with a Honda Civic. Basic, plain, but damn near indestructible. But, frankly, not everyone wants or needs a Honda Civic.

  • Dr. Longfellow Buchenrad

    The GLOCK is never broken. You are broken.

    • EdgyTrumpet

      You aren’t fooling anybody Gaston.

  • john huscio

    If your pistol falls short of perfection, parts are easy to get (so buy extras). Check another box in Glock’s favor.

  • will ford

    Buy a SIG, problem solved.IMO. glocks do not fit me.

  • jlarson41

    I have one of those “perfect” Glocks. Lone Wolf barrel, Metal night sights, extended mag release, extended take down release, major reshaping of the grip frame, Ghost trigger, etc.. I also have a perfect Sig P938, box stock and a perfect CZ P0-7, box stock and a perfect Springfield XDm 5.5, box stock. The cost of these perfect handguns; Glock $1100, all others less than$700.

    • m-dasher

      protip: take all that crap off your gun…..then actually learn to shoot it.

      just because you can throw a bunch of crap on it…..doesnt mean it needs it.

      if you cant shoot a stock glock, you suck at shooting

      • Joshua

        Protip: there’s a difference between being able to shoot a gun, and being able to get the most out of it and enjoy it.

        I can shoot royal nonesuch style slam-fires, I don’t enjoy it, and I don’t get the most out of it.

      • jlarson41

        I didn’t say I couldn’t shoot a stock Glock, it’s just that after shooting handguns for many years, and shooting them very well I have learned what makes a good handgun and a mediocre one.

    • USMC03Vet

      I was at the range once and this guy was showing me all the mods he did to his glock to basically make it into the XD I was using out the box. I still find it hilarious years later.

      • R H

        He modified it to have a horrendous bore axis and an unnecessary grip safety? That’s strange….I’ve never seen those mods before!

        • jlarson41

          It’s funny that Rob Latham beats Glocks all day long shooting one of those awful XDs. I guess he found that the bore axis and grip safety aren’t all that important.

          • R H

            It’s almost as if the shooter is more important than the pistol and people shoot what they are paid to shoot! But if you want to play the “so-and-so shoots this so it’s the best” game, you can find lots antidotal evidence from the big players *payers*. Doesn’t change the fact that the other comment made no sense.

          • jlarson41

            I don’t think someone who doesn’t know the difference between “antidotal” and “anecdotal” is qualified to to determine what makes sense.

          • R H

            I mean, we could argue about auto-correct, or you could refute what I said with an actual argument, but it’s whatever.

        • USMC03Vet

          lol @ mad glock fanboys.

          Never give up. You guys make me laugh too much.

          • R H

            I’m sorry, you’re right. I was actually just about to go get my sharpie and write GRIP ZONE on all my pistols! Silly me is always forgetting where my hands are supposed to go…

      • jlarson41

        Semper Fi from an old Marine!

  • MuttonChopMurkinMan

    You do realize that Glock’s slogan of “Perfection” is in reference to their constant pursuit of perfection, and not actually claiming to have reached it…right?

    • 3 of 11

      So in other words… they are the Borg?

  • jonp

    If Glocks are “perfection” then why is there such a large aftermarket parts industry?

    • m-dasher

      because glocks are popular, and morons think you can buy skill…….

      “oh if i just buy a new barrel my gun will shoot better!”…….”oh i need a new trigger, i cant shoot this POS!”……..”oh my sights suck, i cant hit anything with them”

      no….you just suck as a shooter, go get some training.

      • jonp

        are you trying to tell me that EoTech I bought for my AR won’t turn me into an Operator? The sales guy said I’d be operating like nobodies business

  • MattCFII

    Supposedly the newer coil trigger springs are more reliable, have more of a D shape at the ends instead over just folded over circular coils, the also have a slightly more gray finish. I think they have hit the market before that article was written 3 years ago but may not have been in as common use. Also making sure the coil trigger springs are hooked on correctly are important too.

  • Jay Abramson

    You can debate perfection all you want. I just want to know where the Hell did he get a Glock airsoft gun? I would love to get one for in-house simulation and practice.

    The better half draws the line at patching 9mm holes in the drywall…..

  • Greg’s insight is very knowledgeable, but some of his parts replacement recommendations are a bit excessive IMO. I’ve run Glock 22’s for 17 years, worked with our firearms instructors for 15 years, and been an Armorer for 7 years. My agency is about 140 officers strong, with about 160 Glocks. In all that time I’ve replaced (2) locking block pins, and (1) recoil spring assembly. Other Armorers have replaced a few pins, springs, or recoil assemblies as well. Nothing even close to every pistol.

    The recoil spring assembly was on a 10+ year old Gen 3 Glock 22 used by a SWAT operator extensively. A conservative estimate would be 15,000 rounds through that pistol in its 10+ year service before issues with feeding showed up.

    Any pistol used extensively over time will have parts break, or wear out to the point of not functioning properly. I’ve found Glocks to be extremely low maintenance, and even when they do require replacement parts the work is very easy.

    • Sean

      I am an armorer as well and have come across hundreds of them in the last few years and have nothing but praise and respect for the brand.

      I know people with G34s with over 150,000 rounds through them and they haven’t had to replace a single part – NOTHING. I know another guy who has Glocks that look like they have been to hell and back since they never clean them and they never malfunction.

      On the other hand, I know someone who is on their fourth extractor from Glock after getting brass to the face and I know another guy who had both pins walk out as he was shooting.

      There definetly are lemons and Glocks are no exeption. I have only come across 2 or 3 Glock that are lemons or someway defective out of the box but at the end of the day, we and any reasonable person with gun expereice can safely say that Glock’s quality/reliability is “well-above” average. I will say though that their 9mm models are more reliable than their 40/45 models since they were built around 9mm to start off with.