I have one of these rifles that I bought from a friend for use in USPSA. I primarily use Glock 33 round magazines and I have a Glock 17 rounder I use for classifiers. I have had the bump fire issue like others have had. I have found that if I don't hold it tight against my shoulder that is what causes the bump fires.
Recently, I have been having issues with the rifle not extracting the spent casing and trying to load a new round with the spent casing still partially in the chamber. After some investigation, my buddy and I found out the stock extractor spring was compressed so much that it was not holding the cartridge securely in the bolt and it was losing it's grip during extraction. My buddy found a new spring and installed it and the bolt will now hold cartridges securely. I plan on taking the rifle to the range this weekend for a test.
My next endeavor is to replace the trigger with a CMC trigger group. I am hoping this will help with the horrendous trigger pull weight so I can get my follow-up shots off a bit quicker.
