SB Tactical SBT5 Side Folding HK MP5/MP5K Reverse Stretch Clones Pistol Brace - Black - The SBT5 enhances your MP5/MP5K Reverse Stretch with an integral, side-folding polymer endplate. FITS: HK SP5, Century Arms AP5, Zenith ZF-5, PTR 9CT, Most MP5 Clones (9MM Only) **Fits pistols with only one Push Pin. Will not fut models with 2 Push Pins. Complete assembly, ready-to-install Molded polymer end cap with QD socket Integral, side-folding mechanism Designed for 9mm only US veteran designed and proudly made in the USA Product Includes: Complete assembly, Adjustable nylon strap