The TRUGLO MICRO-TAC tactical micro-laser offers an ultra-compact design and weighs less than 1 oz. This compact unit utilizes a 650nm red laser and offers two laser modes: constant laser and pulse laser. Easy ambidextrous push-button activation for left and right handed users Next generation, high-efficiency superconductor laser diode Easy ambidextrous push button activation Recessed on/off buttons eliminate accidental activation Automatically shuts down after 5 minutes Mounts to standard Picatinny or Weaver-style rails Operating temperature: 14 F to 122 F