The KAC SR-25 (Stoner Rifle 25) is the sniper/designated marksman rifle developed by Reed Knight and Eugene Stoner. The basis for the Navy Mk 11 Mod 0 and Army M110 SASS. Uses modified M16 controls with a 20-inch match barrel. Type: Semi-Auto Rifle Action: Gas-Operated Caliber: 7.62x51mm Capacity: 20 Year introduced: 1990, USA Weight: 15.7 oz Overall length: 46.5" Status: Active Military use: Yes Intended use: Military, Special Operations, Precision