Originally Posted by
ohnein
So today I went to an indoor range to test fire and and try different ammo types with my newly built AR-15. I first fired XM193, PMC, Wolf (to test steel case), then Prvi Partisan. My last trigger pull on the magazine loaded with Prvi Partisan 69gr appeared to have fired 2-3 rounds. These were the last rounds in the 20rd PMag I was using.
This is on semi-auto using a LMT full-auto bolt carrier group with a USGI trigger from G&R Tactical's LPK. (I think it is also LMT.)
Now, I'm not 100% sure what happened. I had been making slow and smooth trigger pulls. I don't remember double tapping the trigger. I do remember hearing 2-3 shots very quickly and the gun jerked a lot further to the left than it had previously (I was firing left handed). I'm not sure if more than one round even came out. I wasn't counting up to that point. Maybe the extra shots I heard were just other pistols on the range.
What I want to know is - Is it possible for some malfunction somewhere in the gun to cause 2-3 rounds to fire on a single trigger pull on a semi-auto trigger?
Note: the safety is also semi-auto.