Stag Arms .223/5.56/300BLK M16 ProfileBolt Carrier Group - Nickel Boron

This bolt carrier assembly is designed to work with any AR-15 rifle, upper half, or barrel designed for right hand ejection in the 5.56/.223 caliber. The nickel boron coating has increased lubricity and a low friction co-efficient; therefore, the life expectancy of a firearm will be greatly increased due to reduced friction wear. Coating: Extremely Durable Nickel Boron Coating Bolt carrier material: 8620 steel Bolt: 5.56/.223 Right-Handed Bolt assembly Included parts: Bolt carrier, bolt assembly, cam pin, firing pin, and firing pin retaining pin Design: M16 carrier with a shrouded firing pin Staking: Proper mil-spec staking of the gas key SKU: STAG300755