Orion H40-W 500 Lumen LED Tactical Flashlight with Pressure Switch and Rifle Mount Equipped with the Cree XM-L U2 500 lumens LED, this is one of the brightest Lights you can mount on your rifles Comes with a constant on button switch and a momentary on pressure switch for different tactical need The bundle includes a Picatinny/Weaver single Rail mount, ready to be installed Compact, recoil-proof and water resistant Robust one-year worry free warranty (Free replacement on any defective or broken parts)