M16 Nickel Boron BCG (Fail Zero) Reduced Friction


Reduced Friction SOT (Nickel Boron) Complete M16 Bolt Carrier Group (5.56) Our M16 Bolt Carrier Group is one of the nicest and highest quality Bolt Carrier Groups on the market. It features a shot peened bolt with Mil-Spec Viton O ring and are MPI tested, NiB Coated by Fail Zero, have properly staked gas keys and have Grade 8 hardware.

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(Nickel Boron) Fail Zero Complete M16 Bolt Carrier Group (5.56):

This unique, breakthrough technology creates a permanently lubricious surface, harder than the substrate itself, which eliminates the need for grease, oil, or any wet lubrication for the life of the weapon. Unlike films, conventional coatings and applied lubricants, it will never rub off, never flake off, never build up crud. Harder and smoother than Chrome this Technology eliminates wet-lubrication failures of critical components, giving you an “active weapon advantage” under all conditions.

(FAIL Zero)


  • Carpenter 158 MPI Bolt (Magnetic Particle Inspected)
  • (SOT) Logo Engraved on carrier
  • Reduced Friction
  • Shot Peened Bolt
  • Nickel Boron 8620 Carrier (M16)
  • Nickel Boron Gas Key
  • Gas Key Hardened to USGI Specifications
  • Grade 8 Hardened Fasteners
  • Mil-Spec Viton O-Ring
  • Key Staked Per Mil-Spec
  • Tool Steel Extractor
  • Extractor Spring
  • Black Extractor Insert


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