i've had this AR for years now, and bought a suppressor about a year and a half ago now. i never had an issue with it, until a few months back. at the range, the bolt, which was a new coated BCG i had purchased, had a massive failure of having a few locking lugs shear right off. i got a new bolt and carrier, and after about a half mag yesterday the same thing happened. over-gassing? years before i had the can, it would not cycle so myself and another ARFCOM'r drilled the gas port out a bit