Knight's Armament SR-25 in the full-length 20-inch enhanced combat configuration, serving as the basis for the US Army M110 Semi-Automatic Sniper System. Type: Rifle Action: Semi-Auto Caliber: 7.62x51mm NATO Capacity: 20 Year introduced: 2000, USA Weight: 130 oz Overall length: 40.5" Status: Active Military use: Yes Intended use: Military sniper, law enforcement precision