Rise Armament RA1011BLK AR15 Bolt Carrier Group 223 Remington/5.56 NATO 4140 Steel Black Nitride
Rise Armament's advanced bolt-carrier group (BCG) is manufactured with precision and individually inspected to ensure high-level performance. It is individually MPI tested and constructed of tool steel.
This model is compatible with your AR-15 and has a black nitride finish. Type: Bolt Carrier Group Model: AR15 Size: 223 Remington/5.56 NATO Material: 4140 Steel Finish: Black Nitride