The M600AA Light from SureFire is a single-power, rail-mounted weaponlight with a recoil-proof LED emitter that produces a 200-lumen beam of white light. Using SureFire’s Total Internal Reflection (TIR) lens, the M600AA Scout spits out a focused beam with an impressive reach. Operation for the M600AA is controlled by either a sealed, click-on/off tailcap switch or the included optional pressure-activated tape switch that enables fingertip control while you’re in the firing position. Integral thumbscrew mount clamps securely to MIL-STD 1913 Picatinny rails accessory rails Rugged aluminum housing with mil-spec hardcoat anodized finish (matte black) Over 3.75 Mfg: Surefire