The SB5K was designed for use on the HK MP5K, MP5K clones, SP89 clones, and the SP5K. It WILL NOT Fit: MP5, MP5K Reverse Stretch, or HK53 clones. Product Includes: Ready to Install with HK-style Adapter Pistol Stabilizing Brace Adjustable Stabilizing Nylon Strap Mfg: Sb Tactical
