The M300 Mini Scout is a powerful, lightweight weapon-mounted light—powered by a single 123A lithium battery—that features a virtually indestructible LED, which generates 500 lumens of light focused by a TIR lens into a high-intensity beam with plenty of reach for close- to mid-range operations. The rugged M300 easily and securely attaches to MIL-STD-1913 Picatinny rails via its integral thumbscrew clamp and is activated by clicking its pushbutton tailcap switch or pressing its pressure-activated tape switch, included on appropriate models. Machined from lightweight aerospace aluminum with a Mil-Spec hard anodized finish and O-ring sealed to keep out the elements, the ultra-compact M300 will withstand the rigors of combat without weighing down your weapon. Features Virtually indestructible ultra-high-output LED generates 500 lumens of blinding light; produces tactical-level light for 1 hour on a set of batteriesTIR lens shapes versatile beam with enough reach and surround light for close-to longer-range operationsHard-anodized aluminum body, tempered window & O-ring seals make light rugged, durable, and combat readyActivation via Z68 momentary/constant-on pushbutton switching with protective shroudThumbscrew mount attaches quickly & securely to MILSTD-1913 rails Specs:Max Output -- White Light500 lumensRuntime*1 Hour*Length4.10inchesBezel Diameter1.125inchesWeight w/Batteries4.1ouncesBatteries1 123A  (included)