The Surefire M300 C weaponlight is a small Scout Light with giant performance. 500 lumens of bright, TIR-focused light for close- and longer-range missions. Easy, instant activation via the included tailcap or an accessory pressure-activated tape switch Increase Force. Decrease Mass. The M300 Mini Scout is mighty in stature yet minimal in structure. It feeds off a single 123A lithium battery, but its virtually indestructible LED devours darkness with 500 lumens of light focused by a TIR lens into a high-intensity beam. Its ideal for close- to longer-range operations, and it easily and securely attaches to MIL-STD-1913 Picatinny rails via its integral M75 thumbscrew mount. Activation is easy: Simply click its push-button tailcap switch or press its pressure-activated tape switch, included on appropriate models.