SB Tactical UMP and APC Folding Pistol Brace w/ Adjustable Nylon Stabilizing Strap Black SBT. SB Tactical Folding Pistol Brace Adjustable Nylon Stabilizing Strap Folding Fits HK UMP and APC Black SBT-01-SB Specifications for SB Tactical SBT Folding Pistol Brace for B&T APC and HK UMP: Manufacturer: SB Tactical Color: Black Features of SB Tactical SBT Folding Pistol Brace for B&T APC and HK UMP: Integral side-folding mechanism Complete assembly ready-to-install Package Contents: SB Tactical SBT Folding Pistol Brace for B&T APC and HK UMP SB Tactical SBTSBT-01-SB: UMP and APC Folding Pistol Brace w/ Adjustable Nylon Stabilizing Strap Black