Product Overview
AR-15 5.56 Complete Bolt Carrier Group is designed to work easily and reliably in any AR-15 or M16 rifle chambered in 5.56x45mm, 300 AAC Blackout or .223 Remington.
Carrier: SAE 8620, Heat Treated, Nitride Coated
Bolt: Carpenter 158, Shot Peened, Heat Treated, Nitride Coated
Firing Pin: Heat Treated, Precision ground
Gas Key: Heat Treated, Chrome Lined, Torqued and Staked to Carrier, Nitride Coated
Cam Pin: Heat Treated, Nitride Coated
