WMD AR-15 NIB-X Nickel Boron BCG Bolt Carrier Group Without Hammer Polished


WMD NiB-X AR-15/M16 Bolt Carrier Group Polished No Hammer


WMD NiB-X AR-15/M16 Bolt Carrier Group Polished No Hammer

If you’re looking for the best bolt carrier group on the market, look no further than the WMD Guns AR-15 NIB-X Nickel Boron BCG. This Bolt Carrier is manufactured by Military defense vendors to WMD’s tight tolerance specifications and features a NiB-X nickel boron coating for long life, high reliability, and easy cleaning and maintenance. Additionally, the components of the bolt carrier group have been NiB-X coated and polished to reduce fouling, making this one of the most user-friendly BCGs on the market. Lastly, whether you’re a competitive shooter or simply someone who wants the best for their AR-15, the WMD AR-15 NIB-X Nickel Boron BCG is the perfect choice.

WMD Nickel Boron BCG Specifications:


  • Carpenter 158
  • magnetic particle Inspected
  • Mil-Spec Gas Rings
  • NiB-X Coated for better wear Protection


  • basically, heat-treated and hardened per Mil-Spec
  • NiB-X coated

Firing Pin –

  • Manufactured per Mil-Spec
  • heat-treated, hardened, chromed


  • AR-15 / M4 / 16 full auto
  • 8620 Steel
  • Also, heat treated, and case hardened
  • NiB-X coated for durability and ease of cleaning.

Gas Key

  • Hardened to Mil-Specs
  • additionally, grade 8 hardened fasteners
  •  NiB-X coated
  • Staked per military specifications.

Cam Pin

  • heat treated, hardened per Mil-spec
  • NiB-X Coated
  • SKU#- NIBXBCG0001

Additional information

Weight 1.5 lbs



BCG Coating



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