The Nightstick TWM-350 tactical weapon-mounted light uses a cree LED rated 350 lumens working in conjunction with a high efficiency deep parabolic reactor to create a usable beam of light rated at 215 meters. This weapon light features a unique and completely ambidextrous toggle switch on each side of the light to operate the momentary -on and constant-on lighting modes. The housing of the TWM-350 is constructed from Aircraft grade 6061-T6 aluminum with a glass filled nylon polymer battery door and toggle switch. Includes 4 sets of cross-rail inserts.