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Dirty Bird Industries Enhanced Bolt Carrier Group .223/5.56
NBS AR-15 .224 Valkyrie/6.8 SPC II Bolt Carrier Group – Nitride
Wilson Combat .223/5.56/300 BLK M16 Profile Bolt Carrier Group – Polished NiB
Rise Armament AR-15/M-16 Bolt Carrier Group – Nickle Boron
JP Enterprises 9mm Bolt Carrier Group w/ Gen 2 Silent Capture Spring
Dirty Bird AR-15 5.56/.223/300BLK Bolt Carrier Group – Polished Nickel Boron
CMMG 22LR AR Conversion Kit, Bravo, w/ 25rd Magazine
Microbest C158 HPT/MPI 5.56 Bolt Carrier Group – Chrome
Aero Precision AR-15 5.56/.223 PRO Bolt Carrier Group – Black Nitride
Wilson Combat .223/5.56/300 BLK M16 Profile Bolt Carrier Group – Phosphate/Chrome-Lined
Rise Armament .308 Bolt-Carrier Group – Black Nitride
BCA M16 Profile 5.56 NATO Complete Bolt Carrier Group – Black Nitride
Toolcraft 6.5 Grendel Bolt Carrier Group – Black Nitride
Lantac Enhanced AR-15/M16 Bolt Carrier Group
CMMG 22LR AR Conversion Kit, Bravo, w/ 10rd Magazine
NBS 9mm Bolt Carrier Group – Black Nitride
NBS AR-15 Bolt Carrier Group – 6.5 Grendel Nitride
NBS .223/5.56 Bolt Carrier Group – Black Nitride
JP Enterprises 9mm Bolt Carrier Group
A*B Arms Pro 5.56 NATO Bolt Carrier Group – Nickel Boron
ODIN Works 9mm Black Nitride Bolt Carrier Group
Aero Precision 9mm Bolt Carrier Group Direct Blowback – Nitride
AO Precision True Mil-Spec SP/HPT/MPI 5.56 Bolt Carrier Group
Dirty Bird Industries 9mm Bolt Carrier Group