The MICRO-TAC Tactial Micro Laser from TruGlo is a ultra-compact, universal fit laser unit designed to fit any weapon equipped with either a Picatinny or Weaver-Style Rail. It features easy ambidextrous push-button activation for either left or right handed users. Made from lightweight aluminum, this laser unit comes in at less than 1 oz. The laser mounts requiring minimal rail space, making it a perfect addition to either a rifle or a handgun. Chose from either pulse or constant laser settings. Automatically shots down after 5 minutes to preserve battery life. This laser is water and shock resistant. Universal Fit – Fits any weapon with a Picatinny or Weaver-style rail Ultr Mfg: Truglo