Rail Mounted Tactical LED Flashlight with Green Laser. 3.39" long x 1.47" wide x 1.83" high. Black aircraft aluminium construction with high impact, chemical resistant polymer laser housing and high temperature, shock mounted, impact resistant Boro Float glass lens. C4 LED technology. 300 lumen output. Green laser provides high visibility long-range targeting. Green laser operating temperature: -40°F to +120°F. Run-time: 2.5 hours (Laser/LED), 17 hours (Laser only). Uses two 3V CR123A lithium batteries (included). Ambidextrous momentary/steady on-off switch. One handed snap-on/tighten interface keeps hands away from muzzle when attaching/detaching. Securely fits a broad range of weapons. Mounts directly to handguns with Glock-style rails and to all MIL-STD-1913 (Picatinny) rails. Includes keys for Glock-style, Picatinny, Beretta 90two, and S&W 99/TSW.