.458 SOCOM Full Auto Bolt Carrier Group NiB-X Nickel Boron Polished - $169

Description

Bolt - Carpenter 158 heat-treated, shot-peened and magnetic particle inspected. Engineered from government drawings for NiB-X. Milspec gas rings. NiB-X coated (40% more wear-resistant than chrome).

Extractor - Manufactured, heat-treated, and hardened per government drawings. NiB-X coated.

Firing Pin - Manufactured, heat-treated, hardened, chromed and certified per Government drawings.

Carrier - M4/16 style full auto (heavier) functions in AR15 and M4/16 platforms, 8620 material, heat treated and case hardened. Manufacturing tolerances and surface finishes tightly controlled. NiB-X coated for durability and ease of cleaning.

Gas Key - Hardened to USGI specifications and attached using grade 8 hardened fasteners. Permatex No. 3D Aviation Form a gasket Type III Sealing Compound per MIL-S-45180 used on assembly. NiB-X coated. Staked per military specifications.

Cam Pin - Manufactured, heat treated, hardened and certified per government drawings. NiB-X Coated.