Not as good as they were... - CMMG, Inc AR-15 Lower Reciever Parts Kit

I built 2 AR,s almost 10 years ago and bought the same kit from CMMG. The quality does not seem to be as good. The trigger’s smoothness and crispness is “almost” as good. However, the biggest complaint is the trigger pin is walking out on me. I think the groove is not deep enough to allow the spring to securely sit in the channel securing it.