AR15 Bolt Carrier Groups Items
AR15 Bolt Carrier Groups: 5.56, 9mm, Nitride, Nickel Boron & More!
Dial in cycling, lockup, and service life with our selection of AR15 Bolt Carrier Groups built for serious shooters, armorers, and gunsmiths. We carry 5.56 NATO, 9mm, 6.5 Grendel, 6MM ARC, 7.62x39, 6.8 SPC, .224 Valkyrie, 450 Bushmaster, and 458 SOCOM options from BROWNELLS, KAK INDUSTRY LLC., FAXON FIREARMS, & BROWNELLS BUNDLES, giving builders the right bolt face, carrier mass, and coating for the job.
Compare full-mass, lightweight, M16-profile, direct-impingement, left-hand, conversion, nitride, phosphate, and nickel boron BCGs by looking at extractor setup, gas-key staking, MPI markings, finish slickness, and caliber compatibility. With verified buyer feedback and our Forever Guarantee®, we help you choose an AR15 BCG that runs hard and cleans up right.
