Just aquired another M14 trigger group. Finish looks better than the one that I had put into my LRB, so I decided to switch. The new one is supposedly a new trigger group removed from an unissued & demilled HRA M14. Everything looks great & the finish matches my LRB perfectly, where the older one was much lighter. Everything seems to be marked as an HRA trigger group, but the safety is marked with a C. Is this correct for an HRA? I'm sure that info is here somewhere, but I haven't been able to find it in my searches. Also, the new trigger looks a bit thinner than the old one. Should it be? Were there different trigger contours? Any reason, or just different makers?
Noob still learning!