Description
  • Diamondback Firearms Item Number: 65M18M50B8R

  • AR-15 Barrel

  • Caliber: 6.5 Grendel

  • 18″ 4150 Chrome Moly Steel

  • Medium Profile

  • Button Rifled, 1:8″ Twist

  • M4 Feed Ramps

  • Threaded 5/8×24

  • Mid-Length Gas System

  • Black Nitride Finish