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Passion, Precision, Performance! Coated bolt carrier group (full auto version) for AR15, M16, or M4 machined from Mil-Spec 8620 aircraft grade steel. The Bolt is machined from Mil-Spec Carpenter No. 158 ® steel. This is a very durable Bolt Carrier Group. The easy to clean Black nitride finish adds to durability, function, and is topped off with a hardness of 60-61 Rockwell. The Gas Key is staked in place and secured with Grade 8 fasteners. The 3rd Gen Tactical logo is laser engraved on the bolt carrier to represent the superior performance.

Weight: .73 lbs

MATERIALS: 8620 Aircraft grade steel, Mil-Spec Carpenter No. 158 ® steel

FASTENERS: Grade 8 gas key screws

COATING: Black Nitride