The Monstrum F07 is a compact, lightweight rail mounted flashlight suitable for a wide range of firearms from pistols to shotguns to AR-15's and tactical rifles. Our most compact flashlight model yet, it measures only 2.4 inches in length and 1.3 ounces in weight. It mounts securely to any Picatinny rail system including most standard pistol accessory rails. Crafted from aircraft grade aluminum, it is both sturdy and lightweight. This flashlight has a standard rail mount.