SCT Nickel Boron Bolt Carrier Group - AR15/M16

$ 99.98

This Bolt Carrier Group comes fully assembled by St. Croix Tactical for your AR15, M16, or M4. 

  • Nickel Boron
  • 9310 Steel Bolt
  • 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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