The SR-25 Precision Carbine Upper Kit was built as a dual role 7.62mm NATO Carbine. Every PC is equally adept at putting rounds on target at 1000 meters or rapid multi-shot engagement at close range distances. Featuring our 16″ cut rifled, precision barrel and our newly designed QDC Flash Suppressor, the 16″ PC upper is the ultimate choice in the precision carbine 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.