Heckler and Koch (HK USA) Folding Stock Sp5k Black

The Heckler and Koch Folding Stock SP5K in black is a purpose-built collapsible buttstock designed for the HK SP5K platform, a civilian-legal variant of the legendary MP5 submachine gun platform. This accessory serves operators, law enforcement, and civilian shooters who require compact handling without sacrificing ergonomic control. The folding stock design enhances versatility for vehicle transport, close-quarters operations, or storage in confined spaces while maintaining full functionality when deployed in the field.

Engineered to HK's exacting German manufacturing standards, the folding stock integrates seamlessly with the SP5K's receiver and locking mechanism, ensuring repeatable and secure positioning during operation. The lightweight design—weighing just 0.75 lbs—minimizes felt recoil signature and doesn't compromise the platform's inherent accuracy. The black hard-anodized finish provides corrosion resistance and reduces light reflection in tactical environments.

The stock's geometry maintains the ergonomic grip angle and control geometry that makes the SP5K platform favored by professionals, while the folded position significantly reduces package size. This folding stock is compatible exclusively with the HK SP5K and direct-blowback variants chambered in 9mm Luger. Installation requires no gunsmithing—it bolts directly to the factory receiver with standard HK stock hardware.