AR45 Blowback Upper Builders Kit



A limited time offer! Builders kit including our “Guaranteed to Feed” 45ACP barrel, bolt, and 10 ounce heavy extended buffer.Tested to run on Angstadt, Black Creek Precision, New Frontier Armory/, and Quartercircle 10 large frame Glock magazine lower receivers. Runs flawlessly with our Macon Armory Magazines and magwell adapters.

  • 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
  • 5/8 x 24 Muzzle thread
  • Muzzle device Included

Additional information


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Macon Armory


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