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2nd Glock that doesn't stay open.

Discussion in 'Handgun Discussion' started by pinne65, May 2, 2016.

  1. pinne65

    pinne65 Hillsboro, OR Active Member

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    I just got my Gen 4 G29. Brand new. I love shooting it.

    But I'm having the same problem as I do on my Gen 3 G20.

    The slide doesn't stay open after the last round is fired. This was a brand new gun. I fired 100 rounds maybe. Everything is stock on the 29.

    Is this a coincidence or something I'm doing? Like limpwristing or the opposite I guess would make more sense.
     
  2. 308

    308 ΜOΛΩΝ ΛΑΒΕ ΜOΛΩΝ ΛΑΒΕ Platinum Supporter Silver Supporter

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    Have you disassembled the trigger group by removing the cross pins, etc.?
     
    slimer13 likes this.
  3. slimer13

    slimer13 Deer Park Well-Known Member

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    Same mag? Follower issue?
     
  4. 308

    308 ΜOΛΩΝ ΛΑΒΕ ΜOΛΩΝ ΛΑΒΕ Platinum Supporter Silver Supporter

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    I'm thinking maybe the slide stop lever spring might not be in the correct position. But what do I know :cool:
     
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  5. Twodogs

    Twodogs portland Or Active Member

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    Empty mag rack the slide by hand, does it lock back?
     
  6. Dyjital

    Dyjital Albany, Ore Flavorite Member Bronze Supporter

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    Yes, and....

    Please mention what munitions you are using.

    Are you limp wristing it? That can cause those issues just like a stovepipe.
     
  7. Beta1759

    Beta1759 Beaverton Bronze Supporter Bronze Supporter

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    or you are holding down the slide catch with your thumb.
     
  8. Twodogs

    Twodogs portland Or Active Member

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    Also weak ammo will give you fits with a glock.
     
    Dyjital likes this.
  9. pinne65

    pinne65 Hillsboro, OR Active Member

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    I have taken the 20 apart and checked the lever spring. It's under the top pin.

    Different mags. If I hand-rack, both stays.

    I was using DT 180gr advertised as 1350 I think out of a 5" barely. As well as some of my own hand loads. All of them on the warmer side.

    It'll take me another outing to figure if I'm limping or squeezing the slide stop.

    I'll take them both apart and double check everything....
     
  10. spookshack

    spookshack Forest Grove, OR Life Member Lifetime Supporter 2016 Volunteer

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    Have a buddy shoot it too.
     
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  11. CHLChris

    CHLChris Portland Metro East Love me some guns! Bronze Supporter

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    If the same thing is happening with two Glocks, the common thing between the two is YOU. Your support thumb absolutely must be holding the slide catch so it does not push up into the slide upon empty mag.

    I had the opposite problem and was pushing up my slide stop in the middle of a mag. I had actually installed extended versions of the part. I went back and put in the originals so I didn't do that during a DGU.

    It has to be user error. Not conscious, not a skill issue. I'm not admonishing you or anything. But it sounds to me like you may need to look at the placement of your support thumb.
     
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  12. 308

    308 ΜOΛΩΝ ΛΑΒΕ ΜOΛΩΝ ΛΑΒΕ Platinum Supporter Silver Supporter

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    ^^^Along the same line, all of my Glocks shoot low and left. Pretty sure it's not the Glock at fault. :eek::D
     
  13. Sgt Nambu

    Sgt Nambu Oregon Bronze Supporter Bronze Supporter

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    Now, now! Let's not be hasty to assign blame!

    They are Glocks after all! There could be rodent scat around the slide stop or any number of other bugs involved!:D
    Hope you get it worked out!:)
     
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  14. Velzey

    Velzey Estacada, Oregon Gunsmith Gunsmith Bronze Vendor Bronze Supporter

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    Hold it tighter...
    Does it do it when you use a two hand hold?
     
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  15. Kruejl

    Kruejl Hillsboro Moderator of the Coriolis effect Staff Member Gold Supporter Silver Supporter

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    My buddy has the same issue with the two Glocks he owns. He is right handed and it happens almost every mag. Now, I'm left handed and can shoot both of his and both of mine and the slide locks back every time. Point? His thumb and most likely yours are resting on the slide stop.
     
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  16. v0lcom13sn0w

    v0lcom13sn0w Keizer, or Well-Known Member

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    shoot left handed on the last round and s the if it locks back. that way your thumbs arent holding the mag catch down. has anyone else shot your glocks? does it do it to them?
     
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  17. pinne65

    pinne65 Hillsboro, OR Active Member

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    Yea, after scrutinizing my grip I must admit the likely hood of that being the problem is pretty darn high.
     
    Dyjital likes this.
  18. pinne65

    pinne65 Hillsboro, OR Active Member

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    Lol - after years I'm now trying to get comfortable without squeezing the slide stop. It was so comforting :)
     
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  19. No_Regerts

    No_Regerts United States Well-Known Member

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    I never had the problem with Glock, but SIGs were another story.
     
  20. Doc In UPlace

    Doc In UPlace Tacoma-ish Well-Known Member

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    Floppy thumbs.

    A 1/2 to 3/4" wide piece of stair tread tape, stuck below the slide release can give the thumb something to "stick" to.

    Also, check out the grip style that places the right thumb on top of the left thumb as both thumbs point at the target, parallel to the barrel. Putting a little pressure of the right thumb down onto the left one can help secure this wayward digit.
     
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