Streamlight TLR Series is built to military specifications. This series of top-quality gun lights features technology currently being used by U.S. special operations. Streamlight Tactical Gun Mount Lights are compact, easy to handle, and lightweight so they don't interfere with the balance of the gun. These Streamlights are designed to attach or detach in less than two seconds! Streamlight TLR Tactical Lights are powered by super-long-lasting lithium batteries. Streamlight LED weapon lights from the TLR Gun Light Series come with a range of options, including optional built-in laser sights, strobe light functions, and infrared illuminators, as well as a range of brightness's. All of these Streamlight tactical lights are powered by lithium batteries with a 10-year shelf-life. Each Streamlight TLR Tactical Light includes rail locating keys for Glock style pistols, 1913 Picatinny, S&W 99/TSW, and Beretta 90two. Cast a blinding light on your target and take control of any tactical situation with the Streamlight TLR Series of tactical weapon lights and accessories.