WMD AR-15 NIB-X Nickel Boron BCG Bolt Carrier Group no Hammer Polished


Vendor: WMD Guns

Description:

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

NiB-X M16/AR-15 Full Auto Bolt Carrier Group is manufactured by Military defense vendors to WMD tight tolerance specifications to provide the best bolt carrier group  available. This BCG has been engineered for NiB-X nickel boron coating to provide long life, high reliability and easy cleaning and maintenance. The components of the bolt carrier group have been NiBx coated and polished to reduce fouling.

Specifications:

Bolt 

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

Extractor

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

Firing Pin -

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

Carrier 

  • 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