The TLR-2® is an intensely bright, virtually indestructible rail-mounted tactical light with red beam that attaches to a variety of guns in seconds. It is ideal for full-size pistols.
"The TLR-2 is a Lightweight, compact, lithium battery powered Gun-Mounted Tactical Light with integrated aiming laser and the latest in power LED technology. The light is built with a shock-proof C4 LED and provides at least 2.5 hours of continuous run time when in dual mode with the high power visible laser. Rail clamp designed to rapidly attach/detach from side of weapon. Fits existing holsters Mounts directly to handguns with Glock-style rails and to all MIL-STD-1913 (Picatinny) rails. Includes keys for Glock-style, Picatinny, Beretta 90two, S&W 99 and S&W TSW"