Check the listing for details. SureFire M640U Pro Scout Light (M640U-TN-PRO). Color: Tan, Condition: New. Listed at 332.00 USD. SureFire M640U Pro Scout LightThe SureFire M640U Pro Scout Light raises the bar by which all other weapon lights are measured. Featuring SureFire’s new Low Profile Mount (LPM), the Scout Light Pro delivers unprecedented versatility by allowing the user to optimize the light’s position relative to the hand guard and the laser aiming device. Rugged and reliable, the LPM can be easily and securely attached to any MIL STD 1913 or M LOK rail, and every Scout Light Pro model includes mounting cleats for both rail styles. The Scout Light Pro is a tactical powerhouse, featuring a recoil proof, premium LED that generates 1000 blinding lumens from two 123A batteries. Focused through SureFire’s proprietary TIR lens, it produces a far reaching, high-intensity beam with ample surround light. Rugged and reliable, its shrouded Z68 push button tail cap helps for easy, instant activation with a single click. Made of lightweight aerospace aluminum with a Mil Spec Hard Anodized finish, and O ring sealed to keep out the elements, the tough. Scout Light Pro will help you adapt and overcome in combat conditions without any sacrifice in weapon maneuverability.SureFire M640U Pro Scout Light FeaturesNew SureFire Low Profile Mount greatly enhances versatility, letting you mount the Mini Scout Light Pro in the optimal position on any MIL STD 1913 or M LOK railMIL STD 1913 and M LOK rail mounting cleats are included with every Scout Light Pro modelVirtually indestructible ultra high output LED generates 1000 lumens of blinding light; produces tactical-level light for 1.25 hours on two 123A batteriesTIR lens shapes versatile beam with enough reach and surround light for medium to longer range operation.Reliable activation via Z68 momentary/constant on push button switching with protective shroud SpecificationsBezel Diameter1.125 inColorTanLength5.5 inWeight4.8 ozBatteries123AOutput White1,000 LumensRuntime White1.25 hrs