LandoCommando69 Posted June 7, 2019 Share Posted June 7, 2019 (edited) I have a 2011 (.40) with STI Mags and the gun locks back 100% of the time with 1 round remaining in the mag. It doesn’t matter if it is factory ammo, reloads, truncated cone or otherwise, I can’t get the gun to keep from locking back with 1 left in the magazine. Any my experience or suggestions how to fix this issue? Thanks in advance! Edited June 7, 2019 by LandoCommando69 Link to comment Share on other sites More sharing options...
Sarge Posted June 7, 2019 Share Posted June 7, 2019 54 minutes ago, LandoCommando69 said: I have a 2011 (.40) with STI Mags and the gun locks back 100% of the time with 1 round remaining in the mag. It doesn’t matter if it is factory ammo, reloads, truncated cone or otherwise, I can’t get the gun to keep from locking back with 1 left in the magazine. Any my experience or suggestions how to fix this issue? Thanks in advance! This is why we generally disable slidelock capability on 2011’s Link to comment Share on other sites More sharing options...
cheers623 Posted June 7, 2019 Share Posted June 7, 2019 STI Factory mags have followers that were generally designed around the .45 acp round. As a result, the .40 round diameter is too small and allows the follower to engage the slide stop prematurely with 1 round left. If you don’t want the slide to lock back, you’ll need to change followers or file the slide stop pawl down. Hope that helps. Link to comment Share on other sites More sharing options...
LandoCommando69 Posted June 7, 2019 Author Share Posted June 7, 2019 Cheers623, Thanks for the help man! I’ll try a new follower but that definitely makes sense. I’m new to this 2011 game so advice like this is super helpful. Link to comment Share on other sites More sharing options...
sauza45 Posted June 7, 2019 Share Posted June 7, 2019 Brazos has a good article on this on his web sight. Link to comment Share on other sites More sharing options...
mike4045 Posted June 8, 2019 Share Posted June 8, 2019 My 2011 locks back it is broke Link to comment Share on other sites More sharing options...
Joe4d Posted June 9, 2019 Share Posted June 9, 2019 What is a lock back ? Really if you are there you messed up,, HOWEVER,, take top end off gun, put slide stop in frame,,, insert a loaded mag,,, look down,, WHAT is pusing up your slide stop ? the last round or the follower ? Now you can either dress the followers if needed, or dress the slide stop,, Generally Idress the slide stop to clear the rounds. as mentioned if I am empty,, stage is probably FUBAR'ed Link to comment Share on other sites More sharing options...
zzt Posted June 10, 2019 Share Posted June 10, 2019 It will not be the top round that engages the slide stop. It will be the protrusion on the front left of the follower. It the follower is angled up enough to feed properly, that protrusion is too high. You can do one of two thing, other than ruining your slide stop. First, if you want slide lock on empty. file the top of the protrusion. You want to file it parallel to the barrel. Take off a little at a time and test. Your second option is to remove it entirely. That will eliminate slide lock altogether. Link to comment Share on other sites More sharing options...
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