Sb Tactical Sbt5K01Sb Sbt5K Black Hk Mp5K/Sp89
The SB Tactical SBT5K is a side-folding stabilizing brace engineered for the HK MP5K, SP89, and compatible 9mm clones. Built as a complete assembly with a molded polymer construction, it's designed to give you a more stable platform while remaining compliant with proper use guidelines. This is a ready-to-install component that comes with everything needed for setup, though gunsmith fitting may be required depending on your specific platform's tolerances.
The SBT5K features an integral side-folding mechanism that collapses for convenient carry or storage without removing the brace itself. The molded polymer end cap incorporates a QD (quick-detach) socket, giving you mounting flexibility for accessories. An adjustable nylon strap is included to dial in the fit to your forearm, ensuring you get a comfortable, personalized feel. The brace itself is compact—just 10.5 inches in length and 2.25 inches at its widest point—and weighs a manageable 12.5 ounces, so it won't burden your platform's dynamics.
SB Tactical is veteran-owned and manufactures the SBT5K in the USA. One critical compatibility note: the SBT5K is designed for 2-pin "K" models like the SP89, SP5K, PTR 9KT, and most SP5K clones. Your platform must have two push pins for this brace to mount correctly—if your pistol uses only one pin, this brace will not fit. Before ordering, compare your gun's pin configuration to the product images to confirm compatibility. Remember, stabilizing braces are designed only for forearm use as a stable platform; they are not designed or intended to be fired from the shoulder.

