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CORE15 Nickel Boron AR-15 BCG

CORE15

  • .223/5.56 
  • Mil-spec Carpenter158® steel bolt 
  • MPI Stamped
  • M16 8620 Steel Carrier 
  • Nickel Boron Coating
  • Gas Key Hardened to USGI Specs 
  • Gas Key Grade 8 Hardened Fasteners 
  • Mil-spec Staked Gas Key 
  • Tool Steel Extractor Upgrade 
  • Extractor Spring
  • M16 Profile
  • Includes the Bolt, Cam Pin, Firing Pin, & Retaining Pin
  • Shot Peened

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