Designed for fast and close work, the Tasco TRD130T 1x30 Red Dot Reflex Sight features a simple 5 MOA center red aiming dot that is easy to see and won't obstruct the sight window. The sight is powered by one included CR2032 battery, and a rheostat allows you to control the brightness based on your personal preference or light conditions. Choose from 10 brightness levels, with off positions between each level to make it easy to quickly return to your optimum intensity. Zero the sight to your gun at 1 MOA per click using the capped windage and elevation adjustments for improved accuracy. The wide 120 MOA windage and elevation range gives you all the room you need to get you on-target. The body is made of a lightweight aluminum treated with an anodized finish so that it won't weigh your weapon down when mounted, and it is sealed to be waterproof. The sight is equipped with a clamp-style mount for easy mounting on Weaver or tip-off rails.