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


WMD NiB-X AR-15/M16 Bolt Carrier Group NiB-X Black


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

Looking for a bolt carrier group that will provide you with long life, high reliability, and easy cleaning and maintenance? Look no further than the WMD Guns NiB-X Polished Black M16/AR-15 Full Auto Bolt Carrier Group! This BCG has been engineered for NiB-X Black coating to provide superior performance in even the most demanding situations. The components of the bolt carrier group have been coated and polished to reduce fouling, so you can keep your AR-15 running like a well-oiled machine. Whether you’re a professional soldier or a weekend warrior, trust the WMD NiB-X AR-15 BCG Black to give you the edge you need to succeed.

WMD NiB-X AR-15 BCG Black Specifications:


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


  • 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
  • heat treated and case hardened
  • NiB-X coated for durability and ease of cleaning.

Gas Key

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

Cam Pin

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

Additional information

Weight 1.5 lbs




BCG Coating


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