SB Tactical SBT5K Side Folding 2-Pin K Model Pistol Brace - Black - The SBT5K enhances your MP5K with an integral, side-folding, molded polymer end cap. FITS: 2 Pin "K" Models such as HK SP89, HK SP5K, PTR 9KT, Century Arms AP5-P & AP5-M, MOST SP5K Clones (9MM ONLY). **2 push pins are needed for this brace to install. It will not fit pistols with only 1 push pun. Complete assembly, ready-to-install Molded polymer end cap with QD socket Integral, side-folding mechanism Comes with adjustable nylon strap for custom fit US veteran designed, and proudly made in the USA Product Includes: Complete assembly, Adjustable nylon strap