Specifications:

Prime Weaponry’s M16 Titanium Nitride Bolt Carrier Group, ready for installation. The bolt is 5.56/223. Titanium Nitride finish provides a unique look, while provide excellent lubricity, hardness and corrosion resistance.  Carrier is made with 8620 hardened steel and the bolt is made from 9310 Vac-Arc Premium Carburizing Steel which has a high core hardness and high fatigue strength. Gas Key is properly staked, and bolt is magnetic particle tested.