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Dirty Bird AR-15 5.56/.223/300BLK Bolt Carrier Group – Phosphate/Crome-Lined
HM Defense AR-15 5.56/.223 HMB Battle Bolt Carrier Group – Black Nitride
Wilson Combat .223/5.56/300 BLK M16 Profile Bolt Carrier Group – Polished NiB
Toolcraft 9mm Bolt Carrier Group Gen 2 – Black Nitride
JP Enterprises 9mm Bolt Carrier Group w/ Gen 2 Silent Capture Spring
NBS AR-15 .223/5.56 Bolt Carrier Group – Phosphate
Aero Precision AR-15 5.56/.223 PRO Bolt Carrier Group – Black Nitride
Dirty Bird AR-15 5.56/.223/300BLK Bolt Carrier Group – Polished Nickel Boron
Microbest Mil-Spec C158 HPT/MPI 5.56 Bolt Carrier Group – Phosphate/Chrome-Lined
Wilson Combat .223/5.56/300 BLK M16 Profile Bolt Carrier Group – Phosphate/Chrome-Lined
Sons of Liberty Gun Works AR-15 .223/5.56 Bolt Carrier Group – Hard Chrome
NBS 9mm Bolt Carrier Group – TiN
NBS .223/5.56/300BLK M16 Profile Left-Handed Bolt Carrier Group Black Nitride
Toolcraft 6.5 Grendel Bolt Carrier Group – Black Nitride
A*B Arms Pro 5.56 NATO Bolt Carrier Group – Nickel Boron
ODIN Works 9mm Black Nitride Bolt Carrier Group
NBS 9mm Bolt Carrier Group – Black Nitride
Dirty Bird Industries 9mm Bolt Carrier Group
NBS .223/5.56 Bolt Carrier Group – Black Nitride
Rubber City Armory Low Mass Competition AR-15 BCG w/ Adjustable Gas Key
Rubber City Armory Blacknitride+ M16 Bolt Carrier Group w/ Adjustable Gas Key
LBE Unlimited AR-15 5.56/.223 Bolt Carrier Group – Phosphate
Bootleg Inc Four Position Adjustable AR-15 Bolt Carrier Group
.45 ACP Enhanced Bolt Carrier Group – Black Nitride
Dirty Bird Brand AR-15 Parts
