Tweet
first - spare me the "glocks don't malfunction" or "should have kept it stock". I'm aware 
. I picked up a complete 34Gen3 lower, so decided to piece together an upper instead of getting a complete OEM one. Unfortunately I'm getting malfunction city so looking for pointers before I take it to an actual smith. Build list is a mixmaster, it's got zev internals, a storm lake ported barrel, and a slide from a company you probably never heard of. This is to be a competition gun, not carry/hd. I have others for that.
I get FTF every round. First chamber and fire is fine, second round is grabbed off the mag, and stops with nose about half way up feed ramp. Also, if I chamber a single round with no magazine, I get FTE, kind of. The fired shell does not eject fully and catches vertically in the port, case opening up. Both of these occur 100% of the time. Doesn't matter how full the mag. It does lock back on empty mag if last round. Felt recoil is hard to say, it's 9mm, and I usually shoot a G19, so maybe it's less, I can't really tell, if it's different it's not a lot.
I've used federal and wwb 115gr ball. I've tried several ETS and magpul 10rd mags, new. Also tried a 17lb recoil spring and 15lb. All combinations, identical results every time. My suspicions point to the recoil weight, and I want to say I need to try lighter springs since I don't seem to have the recoil to fully eject properly, and it could barely be short stroking and not having enough pull to feed. The slide could be hanging up somewhere I guess, or not locking/unlocking the barrel correctly, but I don't feel any unusual drag when hand racking, it's no more difficult than my stock G19. I didn't expect the slide/frame fit tolerance to be that demanding, not like a 1911, but I could be wrong. And I don't expect that just going to 124gr or certainly 147gr will solve this.
What say the free advice of calguns, before I go pay for advice elsewhere?
. I picked up a complete 34Gen3 lower, so decided to piece together an upper instead of getting a complete OEM one. Unfortunately I'm getting malfunction city so looking for pointers before I take it to an actual smith. Build list is a mixmaster, it's got zev internals, a storm lake ported barrel, and a slide from a company you probably never heard of. This is to be a competition gun, not carry/hd. I have others for that.I get FTF every round. First chamber and fire is fine, second round is grabbed off the mag, and stops with nose about half way up feed ramp. Also, if I chamber a single round with no magazine, I get FTE, kind of. The fired shell does not eject fully and catches vertically in the port, case opening up. Both of these occur 100% of the time. Doesn't matter how full the mag. It does lock back on empty mag if last round. Felt recoil is hard to say, it's 9mm, and I usually shoot a G19, so maybe it's less, I can't really tell, if it's different it's not a lot.
I've used federal and wwb 115gr ball. I've tried several ETS and magpul 10rd mags, new. Also tried a 17lb recoil spring and 15lb. All combinations, identical results every time. My suspicions point to the recoil weight, and I want to say I need to try lighter springs since I don't seem to have the recoil to fully eject properly, and it could barely be short stroking and not having enough pull to feed. The slide could be hanging up somewhere I guess, or not locking/unlocking the barrel correctly, but I don't feel any unusual drag when hand racking, it's no more difficult than my stock G19. I didn't expect the slide/frame fit tolerance to be that demanding, not like a 1911, but I could be wrong. And I don't expect that just going to 124gr or certainly 147gr will solve this.
What say the free advice of calguns, before I go pay for advice elsewhere?
Comment