The Monstrum F08 is a compact, lightweight rail mounted flashlight suitable for a wide range of firearms from pistols to shotguns to tactical rifles. Only 3.7 inches in length and 2.5 ounces in weight, it mounts securely to any Weaver or Picatinny rail. Crafted from aircraft grade aluminum, it is both sturdy and lightweight. A detachable remote pressure switch and one CR123A battery are included with purchase. Available in Black or Flat Dark Earth. Includes: F08 Flashlight, Rail Mount, Remote Pressure Switch, 1 CR123A Batteries Materials: 6061 Aircraft Grade Aluminum Compatibility: Rifles with Picatinny Rail. Full-sized Rail Equipped Glock/1911/Springfield XD/ Sig Sauer. Light Intensity: 90 lm Weight: 2.5 oz Length: 3.7 in Color: Flat Dark Earth Warranty: 1 Year Warranty