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 coefficient; therefore, the life expectancy of a firearm will be greatly increased due to reduced friction wear. $189 on Stag’s website and $150 From Humble Arms!
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