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AR45 Blowback Upper Builders Kit

  • $299.99

A limited time offer! Builders kit including our 45ACP barrel, bolt, and 10 ounce heavy extended buffer

  • 1/16 twist, 4140 CM black nitride barrel
  • Colt pattern ramped bolt
  • 10 oz. extended length steel bodied carbide filled buffer.
  • engineered to run with all currently available large frame Glock lowers