The Brownells M16 5.56 Complete Bolt Carrier Group is designed to work easily and reliably in any AR-15 or M16 rifle chambered in 5.56x45mm, 300 AAC Blackout or .223 Remington. The Brownells M16 5.56 Complete Bolt Carrier Group comes with a bolt, bolt carrier, gas key, firing pin, cam pin and a firing pin retaining pin.

2021年2月25日 · BCM® (MPI) complete bolt carrier group is fully assembled. (BCG) Bolt carrier group (auto version) for your AR15, M16, or M4. Parkerized exterior and chrome lined inside …

The Bravo Company Manufacturing (BCM) M16 AR-15 Bolt Carrier Group (BCG) is a top-quality component that ensures reliable and consistent performance for AR15, M16, or M4 platforms. With precise craftsmanship and adherence to MIL-SPEC standards, this BCG is trusted by professionals and enthusiasts alike.

This drop-in AR-15 BCG features a corrosion resistant hard chrome finish, MIL-SPEC dimensions, and a magnetic particle inspected carpenter 158 steel bolt. Crafted from domestically sourced 8620 steel, the M16 cut carrier includes a gas key fastened by properly staked grade 8 screws.

Palmetto State Armory has a large selection of bolt carrier groups for your AR-15 rifle or pistol. We offer BCGs from brands like Palmetto State Armory, PSA Custom, Cryptic Coatings, Toolcraft, and more. If you are looking for high-quality complete AR-15 BCGs and BCG parts, look no further. Our online reviews speak for themselves.

The Microbest BCG has been designed from the ground up with the most avid shooters in mind, using only the best materials available on the market today. The bolt assembly is machined from Carpenter No. 158® steel, shot-peened, MP marked, HP tested, and has a tool steel extractor that is machined from bar stock.

The Bravo Company MFG Bolt Carrier Group (BCG) are not just your run-of-the-mill Bolt Carrier Groups. It's the beating heart of your rifle, the engine driving flawless operation round after round.

This drop-in AR-15 BCG features a corrosion resistant salt bath nitride finish, MIL-SPEC dimensions, and a magnetic particle inspected carpenter 158 steel bolt. Crafted from domestically sourced 8620 steel, the M16 cut carrier includes a gas key …

These premium 9310 Bolt carrier groups are manufactured by AO Precision to the highest standards of top tier manufacturers within the industry. AO makes these HPT / MPI BCG's for other Military contractor juggernauts, such as FN America. All bolts are rigorously inspected and are individually High Pressure Tested.