The surefire x400 ultra weaponlight integrates powerful white-light illumination and bright red laser aiming capabilities in one compact rail-mountable package.The 5mw laser sight emits a high-visibility red (635nm) beam and the high-performance led generates 500 lumens of brilliant light focused by a total internal reflection (tir) lens to produce a tight beam with extended reach and significant surround light for peripheral vision.Its can be attached to a pistol or a long gun because its rail-lock system permits rapid attachment/detachment to/from either universal or picatinny rails.This weaponlight is activated via ambidextrous switching at the rear of the body providing one-finger control and it is o-ring and gasket-sealed for weatherproofing.The high-strength aerospace aluminum body is mil-spec hard-anodized for superior toughness and corrosion resistance.Material: AluminumType: Weapon LightOutput: 500 LumensBulb Type: LEDOal: 3.60"Weight: 4.90 ozBattery: CR123AProofs: WeatherproofColor: BlackHead Diameter: 1.125"Rechargeable: NoSwitch Type: AmbidextrousHazair: Yes