The SR-25 Precision Rifle Upper Kit was built as a dual role 7.62mm NATO Carbine. Every PR is adept at putting rounds on target past 1000 meters. Featuring our 20″ cut rifled, precision barrel and QDC Flash Suppressor, the 20″ PR upper is the ultimate choice in the semi-auto precision rifle world. This complete upper assembly comes standard with a 15″ URX 4 M-LOK handguard, Knight’s Armament Micro Front Sight, Knight’s Armament Micro 600m Rear Sight, SR-25 Buffer, SR-25 Action Spring, and Magpul M-LOK cover kit.