misfire

I own a USPC .40, V1 I believe, after having an armorer install the LEM trigger package from H&K I have had many malfunctions. The last magazine I went through I had 5 misfires in a row, at which point I cleared my weapon and left the range. Due to the fact that this weapon is one of my off...

Hey gents, I had my usc turned into a ump about a year ago. It was working flawlessly untill recently it started misfiring. When I physically chamber a round. It will fire and extract and chamber a new round and all that good stuff, but the next round is always a light strike. I have switched up...