HK Slimline Stock Features The HK Slimline Stock is engineered in Germany to the same exacting standards applied to HK s professional and military-grade rifle platforms offering a retractable design that adjusts length of pull for a personalized fit across a range of shooting positions and body types. The slim polymer construction reduces bulk along the receiver without compromising structural rigidity keeping the overall rifle profile trim and well-balanced for both field use and range work. Originally issued on specialized HK 416 and MR556 configurations this stock carries the pedigree of one of the world s most respected firearms manufacturers. Broad compatibility with the HK MR762 417 G28 and other AR .308 style platforms makes this a versatile upgrade for shooters looking to improve the ergonomics and aesthetics of their existing build. The retractable mechanism operates smoothly and locks positively at each position providing a consistent wobble-free feel that holds up through sustained use. The HK logo marking adds an authentic factory touch that distinguishes this stock from aftermarket alternatives on any compatible platform. HK Slimline Stock Specifications Manufacturer: HK Model: Slimline Stock Color: Black Material: Polymer Type: Retractable Compatible With: HK MR762 HK 417 HK G28 other AR .308 style firearms