The JRC in .45 ACP shares the same aluminum receiver as the 9mm model but is chambered for the .45 ACP cartridge. It accepts 1911-pattern or Glock .45 magazines depending on configuration and provides improved terminal performance over shorter pistol barrels. Type: Semi-Auto Rifle Action: Blowback Caliber: .45 ACP Capacity: 13 Year introduced: 2010, USA Weight: 5.7 oz Overall length: 32" Status: Active Intended use: Home Defense, Range