Designed in collaboration with Eugene Stoner and manufactured in Vero Beach, Florida, the SR-25 is Knight's Armament Company's attempt at producing the most accurate semi-automatic 7.62x51 mm NATO rifle possible. The upper receiver is numbered to match the lower. It features a custom 30 inch long round handguard, which acts as the mounting face for the included silencer in the lot, surrounding the heavy barrel. Fitted with an A2 style pistol grip and fixed stock. A Harris SL bipod is mounted to the handguard via a 11 1/2 inch long mounting bracket on the bottom. Includes a Leupold Mark 4 8.5-25x50 mm LR/T scope with lens caps. Magazine absent.

Constructed from stainless steel, with a threaded front cap, internal expansion space, along with two ported baffles mounted to a section of .52 caliber internal tubing. Marked "JCB INC/PORTLAND OR." 12 inches overall, but designed to allow gas to expand back into the handguard, and enclosed by the forearm when assembled.