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Sons of Liberty Gun Works factory OEM Bolt Carrier for Mil-Spec AR-15s or M16s.

The carrier is machined from AISI 8620 alloy steel and features a full-auto profile. The carrier is heat-treated, carburized, and stress relieved. The interface surface with the gas key is precision-ground to ensure a good fit.

The gas key on the Sons of Liberty Gunworks Bolt Carrier is fitted with Permatex-sealed Grade 8 hex screws, which are torqued and staked to military specs.

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Cartridge: 5.56 mm NATO

Finish: Black