In the early 1990s, Stoner joined Knight's Armament Company. He continued his AR-10 design work and joined it with the direct gas system of the AR-15. The end result was the SR-25, which improved the AR-10 design with M16A2 advancements and parts commonality. The original SR-25, released in the early 1990s.The United States Special Operations Command took interest in the SR-25, particularly its high magazine capacity and faster engagement time compared to bolt-action rifles. After some modifications, SOCOM adopted the SR-25 in May 2000. Beginning in mid-2011, SOCOM began divesting the SR-25 from their inventory and replacing it with the SSR, the sniper variant of the SCAR. The SR-25 is to be completely replaced by 2017.
Conflict: Denied Ops Edit
SR-25 is Graves' main weapon throughout the game, appearing as "7.62mm SR". Its first upgrade is a rail-mounted camera, which allows Graves to shoot behind corners without exposing himself. The second upgrade is a mounted M26 MASS shotgun, the third is a suppressor and the fourth is a full-auto mode to the M26 MASS.