Select A Brilliant Upgrade. The KM1-E bezel assembly provides both white light and infrared illumination from a single 123A battery when used on an M300 Scout Light®. This small, rugged WeaponLight features SureFire’s proprietary TIR lens, a far-reaching, high-intensity beam with ample surround light. Simply select the appropriate spectrum for the mission by rotating the bezel. Constructed of lightweight aerospace aluminum