My DPMS LR .260 has been having some issues. I need the AR experts and guru's to chime in here. Here's a list of the current issues.
1-Chewed-up and bent firing pin retaining clip.
Less than 1000 rounds through the gun and this is the third
retaining clip I've had to replace. Obviously somethings not right.
2-Chewed-up and broken gas rings on the bolt assembly itself.
A large section is completely missing.
3-Unusual looking primers.
They appear to be pierced. This occurs about 50% of the time. Sometimes they shoot out a tiny little ball of debris which gets ejected or lodged in the bolt carrier.
I can't help but think that maybe it's all firing pin related. Like possibly the firing pin is striking the primer too hard which bends the retaining clip allowing the primers to get pierced. I've repalced the pin already and nothing changed. Looks to be perfectly fine and normal too. Really, I'm totally clueless at this point. Please help and thanks...