Ar-15 Bolt Carrier Group - Ar-15 Bolt Carrier Group Dimpled Black

The SBCG has a slight modification to the standard bolt carrier with regards to ergonomics for slick side uppers and uppers without a forward assist. The factory M16 carriers are very good, and improvements over them would be hard to come by. The S in SBCG stands for Secure Stacking, Slick Side. SBCG carrier has a series of serrations or dimples to aid in closing an out of battery bolt on upper receivers without a forward assist. The carrier still has forward assist pawl notches, and so is compatible with forward assist equipped uppers. The Secure Staking aspect involves SBCG's use of Ned Christiansen's OCKS (Optimized Carrier Key Screws), which when s Mfg: Forward Controls Design