SureFire M640DFT Pro For Rifle 550 Lumens Output White LED Light Picatinny Rail Mount Tan Aluminum SureFire Turbo Scout Light Pro WeaponLights are the right tools for your mission if you carry a long gun. Thanks to our Low-Profile Mount (LPM), they deliver unprecedented versatility, which allows the user to optimize the lights position relative to the rail and other attached firearm accessories. The M640DFT-PRO securely mounts to M-Lok or Picatinny rails and deliver up to 71,000 candela of high-intensity light, so you'll see down the longest corridors and through the darkest windows. Dual Fuel allows you to power up with the appropriate rechargeable 18350 or 18650 batteries or CR123 lithium primary batteries.