The SureFire M600U Scout Light is a battle proven, light-weight, highly maneuverable weaponlight that utilizes SureFire's own Total Internal Reflector lens to produce a 600 lumen beam at distances over 200 meters. The beam is so powerful it can temporarily impair a target's dark adapted vision and allows for positive target illumination. In addition, the M600U can be attached to any MIL-STD-1913 Picatinny rail with its thumbscrew clamp making it compatible with countless rifle platforms.