Description Next generation, high-efficiency superconductor laser diode. Pulse and constant laser modes. Easy ambidextrous push-button activation for left and right handed users. Recessed on/off buttons eliminate accidental activation. Automatically shuts down after 5 minutes. Mounts to standard Picatinny or Weaver-style rails. Weighs less than 1 ounce. Operating temperature: 14ÂF (-10ÂC) to 122ÂF (50ÂC). Ultra-compact size is ideal for concealed carry. Two sets of batteries included (1.5V-AG4).Constant and pulse laser modes. Firearms, trailers, and some accessories are only available for purchase in stores. Each location follows all BATF and individual state/county/city laws to insure the desired product is legal for sale. Any info provided online is subject to change, please go to your local store for more accurate information.