Aero Precision 5.56 Bolt Carrier Group – Black Nitride – APRH100615C

The Aero Precision Black Nitride Bolt Carrier Group (BCG) is a high quality addition to your AR-15 build.Features:M16-cut carrierMachined from 8620 Tool Steel (Carrier) and 9310 Steel (Bolt)Carrier has forward assist serrationsBlack Nitride Finish – advanced lower friction coating that minimizes the need for lubricants and cleaningProperly staked gas key5.56 Bolt is machined from Carpenter 158 tool steelShot peenedHPT tested/MPI markedBlack o-ring insert on extractorHigh quality BCGWeight11.52 ozBolt Material9310 SteelCartridge Compatibility.223/5.56 NATO/.300 BLKFinishNitride / MeloniteCarrier ProfileM16High Pressure TestedHP TestedMagnetic Particle InspectedMagnetic Partical InspectedPlatformAR-15Bolt FinishNitride / MeloniteMPNAPRH100615CUPCaprh100615c