Description
These US Contract overruns are 5.56mm short stroke gas piston-operated Complete Upper Receiver Assemblies manufactured specifically for the HK416 platform. Built to exact government request these uppers delivers the legendary reliability and reduced maintenance of the HK416’s short-stroke gas piston system in a compact 10.5″ configuration. Unlike traditional direct-impingement systems, the piston-driven design keeps fouling, carbon, and heat out of the receiver and bolt carrier group, resulting in significantly cleaner operation, longer service intervals, and superior performance in adverse conditions (dust, sand, suppressed use). This US-made assembly is engineered as a true replacement upper for HK416 rifles (and compatible MR556/MR223 platforms) manufactured by highly capable US manufacturers. It features a high-quality 10.5″ barrel, full piston operating system, HK-spec bolt carrier group, and accessory capable handguard. It installs directly onto standard HK416 lowers or mil-spec AR15 lowers with no modifications required. Ideal for military, law enforcement, or serious civilian users seeking HK416-level performance in a compact carbine/pistol configuration. Each unit is test-fitted and function-checked for reliability.
