Long-range pistol in 5.56 NATO with 9.2-inch barrel, gas-piston operation, and AR-15 magazine compatibility. Type: Pistol Action: Semi-Automatic Caliber: 5.56x45mm NATO Capacity: 10 Year introduced: 2006, USA Weight: 57 oz Overall length: 18.5" Status: Active Intended use: Sport Shooting, Home Defense