Aero Precision AR15 5.56 Bolt Carrier Group, Black Nitride - APRH100616C

M16-cut bolt carrier group machined from 8620 tool steel carrier and 9310 steel bolt, designed for AR-15 platforms in 5.56 NATO. Features black nitride finish for reduced friction and lower maintenance requirements, with forward assist serrations, properly staked gas key, and HPT testing for reliability.