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A black and silver rifle bolt carrier group is displayed on a white background, showing detailed machining and metallic finishes.

Black NiB-X Nickel Boron AR-15/M16/M4 5.56 Full Auto Bolt Carrier Group

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$195.00

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Only 2 left in stock

SKU: NIBXBCG0001-BLK Categories: ,

Description

NiB-X BLACK, complete BCG, dual coating technology yields the most durable finish available. For those seeking the best.

  • BOLT: Case hardened 9310, shot peened, magnetic particle inspected, with high-performance extractor, ejector springs, gas rings and special O-ring buffer. NiB-X Black coated. Firing Pin: Manufactured, heat-treated, hardened, chromed and certified per government drawings.
  • CARRIER: AR-15 or M16 style (heavy weight), 8620 material, heat treated and case hardened. Manufacturing tolerances on inside diameters tightly controlled. NiB-X Black coated for durability and ease of cleaning.
  • GAS KEY: Hardened to USGI Specifications and attached using OCKS upgraded knurled grade 8 fasteners.
  • . NiB-X Black coated. Staked per military specifications.
  • CAM PIN: Manufactured, heat treated, hardened and certified per Government drawings. NiB-X Black coated.

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