The TLR-2 HL G with green laser provides a 800 lumen blast of light for maximum illumination while clearing a room or searching an alley. Its wide beam pattern lights up large areas so you can identify who or what is nearby. Powered by two 3-volt CR123 lithium batteries with 10-year storage life Rail grip clamp system securely attaches/detaches quickly and safely with no tools and without putting your hands in front of muzzle 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 Machined aluminum sealed construction with black ano Mfg: Streamlight