Knights Armament uppers for sale bring an unprecedented level of quality and precision to your rifle build, resulting in a tactical weapon of elite performance. Family owned and operated, Knights Armament Company produces innovative and reliable military and civilian weapons parts and accessories, keeping your expectations in mind throughout every step of the process. KAC uppers are no exception, with features including free-floating chrome lined hammer forged barrels, M-LOK handguards, E3 round-lug bolt designs, brand-exclusive 3-pronged flash hiders, suppressors, and sights, and availability of 11.5, 14.5, 16, and 22-inch barrel lengths. Develop your weapon from the ground up with a 5.56 NATO or 6.5 Creedmoor KAC upper and experience maximum power and performance in all your shooting engagements.