HK SP5K Folding Buttstock - Black Polymer/Steel

The HK SP5K Folding Buttstock is a complete side-folding stock assembly for the HK SP5K, MP5K PDW, SP89, and comparable receivers that secure the stock with two small HK push pins.

This HK OEM component was made in collaboration with B&T. It combines a black polymer stock with steel components. The stock is German-made, while the B&T mounting block is Swiss-made.

The assembly replaces the compatible host's factory rear butt cap and uses a right-side folding mechanism to provide a shorter folded profile. An integral butt pad completes the shoulder-stock configuration. The design also accommodates shorter-statured users and users wearing body armor.

This complete buttstock assembly is offered in New condition.