BLACK RAIN ORDINANCE AR15 223 Rem Black Nitride SPEC Series Bolt and Carrier Group (BRO-SPEC15-BCG)

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.