RISE Armament RA-1011 AR-15 .223/5.56 Black Nitride Bolt Carrier Group RA-1011-BLK

RISE Armament RA-1011 AR-15 .223/5.56 Nickel Boron Bolt Carrier Group RA-1011-SLVR

RISE Armament RA-1012 AR-10 .308 Black Nitride Bolt Carrier Group RA-1012-BLK

RISE Armament RA-1010 .223/5.56 Black Nitride Low-Mass Bolt Carrier Group RA-1010-BLK

RISE Armament RA-1010 .223/5.56 Nickel Boron Low-Mass Bolt Carrier Group RA-1010-NiB