Brownells 75th Anniversary - A Shooting Heritage
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This Prime Weaponry AR-15 7.62X39mm Bolt Assembly is made from 9310 Vac-Arc Premium Carburizing Steel which has a high core hardness and high fatigue strength unlike standard Hot/cold rolled 9310 steels.

  • Fully Assembled Bolt
  • Shot Peened
  • MPI (Magnetic Particle Inspected)
  • Power Spring Kit
  • Black Nitride Coated

PRIME WEAPONRY - AR-15 7.62 X 39MM CALIBER BOLT ASSEMBLY NITRIDE

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Cartridge: 7.62 x 39 mm

Finish: Black Nitride