This was on a demo rifle and taken to the range once. It is in perfect working order with some powder burns on top that sits below the barrel. It is the turbo head model and has the white LED navigation lights. Here are the factory specs. Buyer pays actual shipping cost. I guarantee this to be 100%functional and as described so there will be no returns. These sold new for about $650. If you have any questions, feel free to contact me. Jason 503-949-7373 SureFire Millennium M900AB Vertical Foregrip 2.5" Bezel WeaponLight attaches to Picatinny rail interface-equipped weapons via a built-in A.R.M.S. throw-lever mount. Sure-Fire M900AB Millennium Vertical Foregrip Turbohead WeaponLight, A.R.M.S. Throw Lever Mount is equipped with five separate switches: (1) two pressure-sensitive momentary activation pads to control the main battle light - one on each side of the grip for ambidextrous operation (2) a constant-on switch (3) a system disable switch to lock the light in the OFF position for covert operations or to eliminate accidental light activation during storage, and (4) a third, smaller momentary switch to control two low-output LEDs that are useful whenever there is a need for a very small amount of light (stealth navigation, nighttime breaching operations, etc.) Features of Sure Fire M900AB Tactical Military / Police Vertical Foregrip Weaponlights w/ Turbohead & A.R.M.S. Throw-Lever Mount: Batteries - Three SureFire lithium SF123 3.0 Volt with 10-year shelf life Lamp Assembly/Runtime - Shure Fire MN15 xenon/halogen gas-filled lamp assembly with 125 lumens output for 60 minutes, or 225 lumens for 20 minutes with included Shure-Fire MN16 ultra-high output lamp assembly Construction - Nitrolon (non-conductive, impact-resistant, aramid glass-filled polymer) housing, Pyrex lens window, shock-isolated aluminum bezel with hard-anodized finish Switching - Pressure sensitive momentary activation pads, constant-on rotary switch, system disable rotary switch 2.5" beam-focusing TurboHead reflector for longer range Flawless white beam, always in focus Bright enough to temporarily blind an opponent Available in: secondary LED navigation lights WH (white), IR (infra-red), RD (red), and BL (blue)