AR15 Nickel Boron Bolt Carrier Group

$110.00

  • .223/5.56
  • 8620 Steel Carrier
  • 9310 Steel Bolt
  • Nickel Boron
  • MPI Bolt (Magnetic Particle Inspected)
  • Shot Peened Bolt
  • Grade 8 Hardened Fasteners
  • Key Staked per Mil-Spec
  • Black Extractor Insert
  • Crane O-Ring

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Description

Each bolt carrier group is precisely machined from high-grade steel alloy to government M16 specs, then given a nickel boron (NiB) coating that results in a super-smooth, low-maintenance surface. Nickel Boron reduces friction to the bare minimum and is impervious to corrosion and abrasion. The slick finish also keeps carbon from adhering, so clean up is much faster and easier than with standard materials and coatings.

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