American Defense Manufacturing AD-170 Short Mount for Surefire 951 Weapon Light Black AD-170-S STD-TL. This base also fits the Atlas BT10-NC and BT10-LW17 Bipods. Also fits the Magpul 17S Bipod. Will Not fit the B&T 5-H Bipod. It is precision machined from 6061 T6 aluminum and finished in hard coat T3 Mil-Spec anodize. It features the Patented QD Auto Lock Lever system to accommodate both in spec and out of spec rail systems. Specifications for American Defense Manufacturing AD-170 Short Mount for Surefire 951 Weapon Light: Manufacturer: American Defense Manufacturing Flashlight Application: Hunting Fabric/Material: 6061-T6 Aluminum Color: Black Finish: Mil Spec Type III Hard Coat Anodized Flashlight Model: Surefire 951 Weapon Light Additional Features: Titanium Lever Package Contents: American Defense Manufacturing AD-170 Short Mount for Surefire 951 Weapon Light American Defense Manufacturing AD-170-S STD-TL: AD-170 Short Mount for Surefire 951 Weapon Light Black