Anderson Manufacturing's nickel boron bolt carrier group is a complete BCG for AR-15 rifles chambered in 5.56 NATO, .223 Remington or 300 Blackout. It is made from 8620 steel with a nickel boron finish that is slick and easy to clean. It installs as a direct replacement for a standard AR-15 carrier.
- Fits: AR-15
- Calibers: 5.56 NATO, .223 Rem, 300 Blackout
- Material: 8620 steel
- Finish: nickel boron
- Manufacturer part: B2-K630-AB00-0P
