Gen 3 G19 BTF

Discussion in 'General Glocking' started by DLL9mm, Feb 19, 2017.

  1. DLL9mm

    DLL9mm

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    I have a 2012-2013 G19 gen 3. It just started the BTF with certain ammo. Does Glock have a fix for this if I send it in? I don't want to add aftermarket parts to correct it.
    Other than the BTF, it is reliable and accurate.
     
  2. Bren

    Bren NRA Life Member

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    If it didn't do it before and just started, and didn't do it before with the same ammo, when is the last time you really, really cleaned it. (For most people the answer is "never")

    If it only does it with certain ammo, the certain ammo just lacks the energy to operate the slide reliably, with your grip and recoil spring.
     

  3. OBG17

    OBG17

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    1st go ahead and clean it to see if it helps. I had the same issue and changed to a 30274 ejector that is found on the Gen 4 TMH and a non-LCI spring loaded bearing which you install on the extractor depressor plunger spring (MidwayUSA has these parts). This took care of BTF for me. You can also get an Apex extractor as well.
     
  4. GunQuest

    GunQuest NRA Member

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    I did the 30274, non-lci pring loaded bearing and apex extractor and results were no more BTF. I did this on 2 G-19's, 2 G-17's and one G34
     
  5. CDW4ME

    CDW4ME Enigma

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    Possibly the MIM extractor has worn allowing movement that it didn't when newer.

    I did that to fix a model 19 Gen 3 that threw brass at my head from start.
    I did it to another as prevention before I shot it, result was no BTF ever.
     
  6. Mike-M

    Mike-M

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    Something that is seldom mentioned is how one gets the Gen4 30274 ejector and installs it into a Gen3 pistol ...it's not sold by itself.

    One must order the Gen4 9x19mm trigger mechanism housing part 30275. Then the 30274 ejector must be extracted from the TMH, as well as the 336 ejector from the Gen3 TMH. Then the 336 ejector can be replaced by the 30274 ejector.

    Neither this nor the use of the non-LCI spring-loaded bearing part 1176 are Glock-approved modifications.

    If you never had the problem earlier, it's doubtful that the ejector or SLB need these innovations. Something else has changed. Are you using the same grip hold?
     
  7. DLL9mm

    DLL9mm

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    Cleaned it today and ran 50 more rounds through it. Still does it. Not as bad though.
     
  8. RPMSTL

    RPMSTL

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    Based on my trials, tribulations and studying of this subject, I think the issue is that the extractors lack proper tension.

    Extractor tension is either lost over time, the port gets dirty or proper tension was not there from the beginning due to less than perfect parts and design from Glock.

    If you study how the ejection process works, you will note that the extractor has to hold the shell firmly against the face until contact is made with the ejector.

    During proper ejection, the spent casing is pushed up and to the right out of the ejection port, before the slide can make contact with the shell.

    If the spent casing hits the ejector while not under proper tension, the shell wants to go more forward / upward than to the right, and gets hit by the recoiling slide causing the shell to go backwards, forwards, left, stovepipe, etc. depending on how many surfaces it hits before exiting.

    The Apex extractors, spring and a non-loaded chamber indicator bearing are great starting points to obtaining proper extracting / ejection.
     
  9. RPMSTL

    RPMSTL

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    IMG_2396.JPG This is what happens when the shell goes out the top of the ejection port instead of to the right.
     
  10. Bigpapacolt

    Bigpapacolt

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    That's where those came from......now it make scene.
     
  11. RPMSTL

    RPMSTL

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    If that dot was not there in the above pic, the shells would have been landing on the shooters forearm, chest, face, hat, etc.
     
  12. RPMSTL

    RPMSTL

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    1911's need tuning to eject properly. It is a commonly accepted practice and skill.

    So do some Glocks. Glock needs to quit hiding from this problem and actually do something about it. It has been going on for way too long.

    I have a couple Glocks that have ejected poorly right out of the box. Others in my collection will throw every shell into a bucket all day long.
     
  13. DLL9mm

    DLL9mm

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    Does this ever cause malfunctions or is it just annoying? ​
     
  14. DLL9mm

    DLL9mm

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    I had a HKp30 that would BTF constantly with 115gr ammo.
    My Glock does it less with 115gr and more with 124.
     
  15. RPMSTL

    RPMSTL

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    Can cause a stovepipe or jam if the shell hits just wrong.
     
  16. RPMSTL

    RPMSTL

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    If the shell hits the ejector less violently, the shell may get pushed out of the port by the next round coming up rather than getting bounced into the recoiling slide.
     
  17. DLL9mm

    DLL9mm

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    Yes but so could a shell coming out normal.
     
    Last edited: Feb 23, 2017
    BigMoneyGrip likes this.
  18. DLL9mm

    DLL9mm

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    For those who have sent guns doing this back to Glock, what did they change to fix the problem?
     
  19. DLL9mm

    DLL9mm

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    I'm going to give Glock a call today.
     
  20. aboyle55

    aboyle55

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    It is annoying and potentially dangerous if these guns are carried.

    I had at one time 3 g19's and a g26

    3 of 4 shot btf.
    Some even ejected to the left.

    A few of these guns started after the first few 100 rds. I cleaned the insides, did the apex thing and it kept doing it.

    After that I never carried these again.
    I'm down to one g19.

    I've since traded them for xd mod2's
    And an xds. They have better triggers out of the box and better ergonomics for me. Not everyone,but I like them.

    I'm never buying another Glock. Gaston will never get another dime from me. I even called Glock and an arrogant rep told me I was holding the gun wrong. He said I could send it in but they won't find anything wrong. I told him my other guns don't do that. I wanted to tell him to go ...