Laser projects 20 yards of visibility during the day and 300 yards in the cover of dark! Fits between trigger guards and muzzles from any full size pistols with rails. 5mW output with a Class IIIa laser type. Made out of glass filled nylon composite material for durable and its shockproof. 1P55-water resistant rating when optic is out in the rain. Adaptable to temperatures that range from 0 to 120 degrees fahrenheit. Weaver/Picatinny style mount can be easily detached in seconds. Operates with two AG13 batteries providing 7 hours of battery life. Adjustable windage (120 MOA) and elevation (400 MOA) range.Specifications: Manufacturer Lancer Tactical Build Glass Filled Nylon Composite Maximum Output