Knights Armament Rifle Uppers for Sale

Knight's Armament Company of the United States is a category mainstay in Rifle Uppers, offering complete SR-15 and SR-25 upper receiver kits since at least 2018 and maintaining dedicated upper lines as a core part of its catalog. These factory-assembled uppers mirror KAC’s duty rifle architectures and stand out for the proprietary Mod 2 gas system tuned for consistent operation (including suppressed use), premium barrels, and URX-family handguards with an integrated barrel nut that trims weight while increasing rigidity, yielding hard-use reliability and precision in complete upper receiver groups.