The SBT5K(TM) enhances your MP5K with an integral, side-folding, molded polymer end cap. FEATURES 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 Due to varying tolerances between roller lock manufacturers, gunsmith installation / fitting may be required. SBT5K(TM) SPECIFICATIONS FIT: HK MP5K/SP89 Clones, SP5K WIDTH [MAX]: 2.25" LENGTH: 10.5" STRAP WIDTH: 1.0" Mfg: Sb Tactical