Lantac M-Spec 5.56 AR-15 Bolt Carrier Group - Black Nitride

FRANKLIN ARMORY Bolt Carrier Group 5.56 x 45mm Black

LANTAC USA M-SPEC NiB 5.56/.223 BCG (01-MSPEC-556-NIB-BCG)

LanTac USA LLC Milspec BCG, Black Nitride 01-MSPEC-556-NIT-BCG

LANTAC M-SPEC+ 308762 Black Nitride Bolt Carrier Group (01-MSPEC-762-NIT-EBCG)

LANTAC Full Auto Style 223/5.56 Black Nitride Enhanced Bolt Carrier Group (01-UP-556-NIT-EBCG)

FAXON 5.56 M16 Nitride TiN PVD Bolt Carrier Group (FF556BCGCNITRIDE-TiN)

BATTLE ARMS Enhanced Bolt Carrier Group AR15/M16 Black