What are your guys thoughts? I bought one online on Black Friday super cheap ($269 with bcg & charging handle). I have already found out about the light primer strikes on steel cased ammo because the primers are seated too deep. I have since bought the enhanced firing pin and heavy duty trigger spring and it still wont fire steel cased ammo. I've YouTubed it where they file down the shoulder of the firing pin but I am reluctant to try that because I don't feel safe doing that. I've seen videos of instances where people have done that and have had rounds go off when they jack a shell in. When I run the brass cased stuff like fiocchie where the primers are somewhat flush, it runs like a boss; and seems to be more accurate than I thought it would be. Either way, I dig it even if I have to run better ammo thru it.