American Defense Manufacturing AD-SF Mount for Surefire M600B Scout Light Black AD-SF STD-TL. 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-SF Mount for Surefire M600B Scout Light: Manufacturer: American Defense Manufacturing Flashlight Application: Hunting Fabric/Material: 6061-T6 Aluminum Finish: T3 Mil-Spec Anodize Flashlight Model: Surefire M300 and M600 series lights Additional Features: Titanium Lever Package Contents: American Defense Manufacturing AD-SF Mount for Surefire M600B Scout Light American Defense Manufacturing AD-SF STD-TL: AD-SF Mount for Surefire M600B Scout Light Black