Description
- .223 Remington/5.56mm NATO
- Complete Bolt Carrier Group
- Black Nitride SPEC Series
- Engraved Biohazard Symbol
- Black Nitride Finish
The BLACK AR-15/M16 Rain Ordnance Bolt Carrier Group, Nib-X Biohazard Engraving (BRO-BCG) features Nickel Boron plating that produces an exceptionally hard surface that improves wear, abrasion and corrosion resistance. The slick finish also keeps carbon from adhering, so clean up is much faster and easier than with standard parts.