9mm AR-9 Nickel Boron NiB Bolt Carrier Group

Compatible with Glock, Colt, Ruger, S&W style magazines. Military Grade hardware. Slick Nickel Boron (NiB) coating that provides lasting durability, lubricity and corrosion resistance.

Glock, Colt, Ruger, S&W magazine compatible
9310 Steel Carrier Construction
4140 Steel Extractor
Staked Gas Key