Nightstick 450 Lumen Compact Long Gun Light Kit 

The Nightstick LGL-150 Compact Long Gun Light features a gun-mounted flashlight that fits most long guns with a Picatinny, Keymod, or M-Lok accessory rails. It has 450 Lumens maximum output and a 2 hour runtime with a 220 meter maximum beam distance. It uses one CR123A battery, which is not included. It has a black 6060-T6 aluminum construction, it is IPX7 water resistant, and it also comes with an Allen wrench for installation. It has been serialized for personal identification. It is 3.8" overall and it weighs 4.2 ounces. It is made in China.