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Faxon Firearms 6.5 Grendel 9310 Bolt Carrier Group Complete – Nitride
7.62×39 M16 Profile Bolt Carrier Group
Geissele Automatics Reliability Enhancement Kit – H3
Geissele Automatics Reliability Enhancement Kit – H1
Rubber City Armory Low Mass Competition AR-15 BCG w/ Adjustable Gas Key
Rubber City Armory Blacknitride+ 9mm Bolt Carrier Group
JP Enterprises 9mm Bolt Carrier Group w/ Gen 2 Silent Capture Spring
ODIN Works 6.5 Grendel Type 2 Black Nitride Bolt Carrier Group
KAK Industry K-SPEC AR-15 5.56/.223/300BLK Bolt Carrier Group – Chrome Lined Phosphate
Faxon Firearms 6.8/.224 Valkyrie AR-15 Bolt Carrier Group – Nitride
Rubber City Armory Low Mass Competition AR-15 BCG
Rubber City Armory Blacknitride+ 6.8 SPC/.224 Valkyrie Bolt Carrier Group
JP Enterprises 9mm Bolt Carrier Group
CMC AR-15 Enhanced Bolt Carrier Group .223/5.56 – Black Nitride
Faxon Firearms 5.56 LIGHTWEIGHT 9310 Bolt Carrier Group Complete – Nitride
Obsidian Arms M16 Bolt Carrier Group Phosphate 5.56
Battle Arms 9MM Enhanced Blowback AR15 Bolt Carrier Group
Battle Arms M16 .223/5.56 Bolt Carrier Group – Nitride
RISE Armament RA-1010 Low-Mass .223/5.56 Bolt Carrier Group – Nickel Boron
Rubber City Armory Blacknitride+ M16 Bolt Carrier Group
Rubber City Armory Blacknitride+ 6.5 Grendel Bolt Carrier Group
Rubber City Armory Blacknitride+ 458 Socom/450 Bushmaster Bolt Carrier Group
Rise Armament RA-1010 Low-Mass 5.56 NATO Complete Bolt Carrier Group – Black Nitride
Rise Armament AR-15/M-16 Bolt Carrier Group – Black Nitride