Knight's Armament SR-25 in M110 SASS configuration with 20-inch barrel, the direct commercial equivalent of the US Army M110 Semi-Automatic Sniper System. Type: Rifle Action: Semi-Auto Caliber: 7.62x51mm NATO Capacity: 20 Year introduced: 2007, USA Weight: 128 oz Overall length: 40.5" Status: Active Military use: Yes Intended use: Military precision semi-auto, law enforcement sniper