Warning for ZevTech Glock owners.

Discussion in 'Handguns: Autoloaders' started by Acera, Jun 5, 2017.

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  1. Kennydale

    Kennydale Member

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  2. JO JO

    JO JO Member

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    So the lesson here from two threads including your link is leave the trigger stock, if you install BUBBAS parts and toss factory parts things can go south and I would also imagine if someone gets hurt or killed you will fry in a court due to altering a factory built trigger/safety assembly, at least this is what I'm figuring, why would someone want an unsafe gun? I carry often and sure don't want it going off if I hit a pot hole in the road , if I alter a factory design I would not be surprised if it doesn't function as designed,
    Companies and engineers spend a great deal of resources to develop a product and I never understood how MR Bubba knows better, as a retired automotive engineer myself I always found is amazing how so many back yard professionals know better and their vehicles never run right yet folks listen to them , this is just my opinion yours may be different
     
  3. Hanzo581

    Hanzo581 Member

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    I would never modify a defensive firearm, if you feel the need to so be it. Range toys or competition guns? Sure, slick them up any way you want.

    The majority of malfunctions and issues I see start with "well, I changed this out or added this" etc

    That's not to say you guys aren't exceptions, just throwing my anecdotal story in there.
     
  4. JohnKSa

    JohnKSa Moderator Staff Member

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    In the normal partial-cock position, a properly operating Glock can't release the firing pin/striker without either bending the trigger bar or smashing the "ramp safety" which is part of the frame.

    The rear of the trigger bar that engages the firing pin/striker is supported on both sides by the ramp safety which prevents it from moving downward enough to release the striker. Unless the trigger bar is moved backwards (further compressing the firing pin spring) past the ramp safety it should not be possible to release the striker from that position without bending the trigger bar and/or deforming the ramp safety.

    If they were doing this test with an unmodified pistol, and it was not damaged by the test, then the most likely explanation is that they were pulling the trigger bar backwards without realizing it.
     
  5. Zerodefect

    Zerodefect Member

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    We've been testing this with a rubber mallet. And many aftermarket triggers are tripping. Dead trigger with a bit of a striker clink, is the result. Some cases with primer only should be the next test.

    It's also worth noting, the trigger safety allows the trigger to come back a hair more, then catches it. Combine that with a jarring hit, and some out of spec trigger parts.........
     
  6. Varminterror

    Varminterror Member

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    There's nothing wrong with using aftermarket parts for a defensive pistol - there's a LOT wrong with using any parts, factory or aftermarket, which are out of spec to the point of malfunction.

    Two of the 3 safeties in the Glock Safe Action design rely upon the 3rd safety - if the trigger moves backwards (a failure of the trigger block safety), the firing pin block safety and the drop safety are disengaged. In this case where a drop caused a discharge, all 3 were defeated. It all starts with the trigger block safety - the block safety should stop the trigger travel before the Firing Pin Block is raised or before the trigger bar cruciform slides off of the drop safety ledge. Sounds like none of the above is happening for yours. Either the blade is out of spec or the spring under power. Get the blade to hold its ground, then confirm the FP doesn't make contact and the Drop doesn't slide off, and all will be well.
     
  7. Hanzo581

    Hanzo581 Member

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    Have we had a thread about this? Would be interested in seeing more opinions on this.
     
  8. Varminterror

    Varminterror Member

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    I bet I know the punchline of the majority of posters here. So start the thread if you have interest, but I'm certain I won't be surprised by the blind eyed opinion of the majority of respondents.
     
  9. Hanzo581

    Hanzo581 Member

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  10. JO JO

    JO JO Member

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    WOW not nice at all, guess you know best rock on !!
     
  11. Varminterror

    Varminterror Member

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    It goes the same way whenever that topic comes up at any forum - legends of what could be a good shoot being over turned by promotion of premeditation or assumption of liability due to ANY modification... Someone will bring up cases where lightened triggers in an LEO's duty pistol was determined to be a primary cause for an ND when they were trained on a suspect BEFORE threat of mortal violence was imminent (not something a civilian should be doing even moreso than an Officer) and other drivers which lead to DAO revolvers only, or the "NYC trigger"... Usually someone drags the use of reloads into the discussion too, and incorrectly cites a case which Mas uses as a case study in which reloaded ammunition was used and ballistic forensics couldn't corroborate the account of the defendant... It's the same song and dance every time it comes up, anyone who doesn't stand against modifications gets painted as irresponsible puppy kickers, and the same arguments and "evidences" are provided as every other time, the only thing which changes is the date on the thread and the html.
     
  12. Shaq

    Shaq Member

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    Doesn't matter whether the gun was purchased modified or modified after purchase.
    Any modification to the trigger or any other function compromises safety and reliability. That's why modifications void the warranty.

    Luckily, you learned the easy way. Some learn it the hard way.
     
  13. Varminterror

    Varminterror Member

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    Can you elaborate on how - exactly - ANY modification to the trigger compromises safety and reliability?

    Modifications void warranties because it's a CYA for the OEM. Making that statement absolves them of responsibility for the quality of work done by some unknown party. I can name plenty of smiths out there I trust more than the skilled labor assemblers and quality assurance officers you'll find at a "factory."
     
    Last edited: Jun 7, 2017
  14. Yo Mama

    Yo Mama Member

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    Interesting question that a poll would answer but everyone of my guns are stock. Only exceptions were the extractors in my 1911s i swaped out for Ed Browns.
     
  15. Yo Mama

    Yo Mama Member

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    And most are not drop in but need fitted.
     
  16. Acera

    Acera Member

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  17. Shaq

    Shaq Member

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    Regardless of how skilled he is, a gunsmith, running a small business, can't spend a fortune for design & durability testing like the factory did; if he did, he would never turn a profit. Manufacturers of "Custom" parts know there are shooters who think a $30.00 trigger will improve their shooting & they are impressed by the word "Customized;" that's why they sell them; not because they're "better" than OEM. As for compromising safety, read the first post.
     
  18. Varminterror

    Varminterror Member

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    Way to skirt the question - now, could you actually address what I've asked of you? Could you - in detail - describe how a gunsmith tuned trigger is OBJECTIVELY less safe, less durable, or less reliable after leaving the smith's shop than it was when leaving the factory? Can you provide actual proof Geiselle's AR-15 triggers or Apex's S&W or Glock triggers don't have design and durability testing proving their safety, reliability, and durability and actual proof of the trigger testing done Glock, Armalite, and S&W (for direct comparison) which you claim supercedes that of any of these aftermarket parts producers?
     
  19. ArchAngelCD

    ArchAngelCD Member

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    Gota love all the self righteous people on forums.

    Then there is this "bubba" thing. I think that is an insulting term.

    Then there is the fact the work was done by the company, not an end user so the fault lies in defective parts and work done by ZevTech.

    This forum is supposed to be better than this.
     
  20. W.R.Buchanan

    W.R.Buchanan Member

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    There is only two possible ways a Glock can fire if the trigger isn't deliberately pulled. One is if the trigger moves to the rear when dropped (just like being pulled), and the other is if the sear engagement is so little that jarring the gun makes the trigger slip off the striker and the trigger bar is far enough back to depress the FPS. The gun can only fire if the FPS is depressed. Period.

    Lots of times the gun will drop the Striker from the cocked position when dropped, but the FPS doesn't allow it to go forward thru the bolt face, so the safety did it's job.

    If the ZEV Trigger bars had the cam for the FPS so far back that they allowed this to happen then they should have been recalled, or more to the point, they should never have gone out the door in the first place.

    I got over aftermarket parts for Glocks along time ago. Nothing but stock parts in my 4 guns, and the only mod is to shave the Trigger Safety down until it is flush with the Trigger Face when depressed instead if sticking up and making a groove in your finger. A G34/35 extended slide catch and mag release complete the guns.

    Also the 3.5 lb connector is a mistake as it promotes "Mashing" so leave the 5.5 lb connector in there and learn to use it. All 4 of my Glocks have exactly the same Trigger Pull, so no matter which one I pick up it runs exactly the same as any other Stock Glock...

    If you look at Glocks in their proper context as "tools" you leave them alone and just shoot them, then all of a sudden all the problems with Glocks magically go away.

    The idea of buying "enhancements" for your gun as a substitute for shooting training and practice, gets you back to being a Golfer or Fisherman and thinking the new Lure or Putter will improve your scores.

    Randy
     
    JO JO likes this.
  21. Zerodefect

    Zerodefect Member

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    This why every single one of those "custom" Glocks says on the bottom of their webpage "for competition only".

    If you want to carry it, it's up to you to do your due diligence and prove that ALL of the safeties work.

    M4carbine.net has a good Glock trigger thread as well. The more normal triggers are safe, the aggressive ones aren't so much. "http://www.m4carbine.net/showthread.php?175571-Looking-for-a-flat-straight-Glock-trigger-Pull-up-a-chair-and-come-inside/page4"
     
  22. Zerodefect

    Zerodefect Member

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    Another test you can do.

    Put tape on a snap cap. Jar the Glock until the trigger goes dead. Check the tape to see if the striker hit it, or was blocked.
     
  23. the duck of death

    the duck of death Member

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    Perhaps the "leave the factory trigger in the gun" crowd don't have a clew how to do a trigger job. Mine results in a 3lb trigger w/reduced take up that's safe & 100 % reliable. Latest is on a G29/3 & is great to shoot,:p
     
  24. Shaq

    Shaq Member

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    I don't have a clew how to do a trigger job. But I did read an article by a gunsmith who does have a clue. He said many parts in a gun are surface hardened & when a tinkerer grinds or polishes, he removes the surface hardening, exposing the softer metal underneath, which results in a part that wears out prematurely. And it also changes the angle. But it works smoothly--until it fails, making the gun unreliable or unsafe.
     
  25. C0untZer0

    C0untZer0 Member

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    I think the lesson we've all learned here is:

    Don't throw pillows at Glocks.
     
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