This Black Rain Ordnance bolt carrier group (brand part no. BRO-BCG) is chambered in .223 Remington/5.56 NATO and coated in nickel boron (NiB), a low-friction finish that many shooters find easier to clean and smoother-cycling than a standard phosphate finish. This AR bolt carrier group ships at approximately 0.81 lb.

Key Specifications

• Chambered in .223 Remington/5.56 NATO.
• Finished in nickel boron (NiB).
• Ships at approximately 0.81 lb.
• A low-friction coating that many shooters find easier to clean than phosphate.

Frequently Asked Questions

Why choose a nickel boron finish? NiB is a low-friction coating that many shooters find easier to clean and smoother-running than a standard phosphate-finished carrier.

Will this fit a .308 AR-10? No, this BCG is chambered for .223 Remington/5.56 NATO; an AR-10 needs the corresponding .308-pattern bolt carrier group.

Buy the Black Rain Ordnance .223 Nickel Boron Bolt Carrier Group

A nickel boron BCG is a proven upgrade for shooters who want easier cleanup and smoother cycling. Order it from our Lubbock, TX gun shop for fast, insured shipping.