THE CT RAD Max is a large open reflex sight for carbines and shotguns. Features a 3 MOA dot, fully multi-coated lens, and large window. The Ambient Light Sensor automatically adjusts brightness based on the environment. An auto-shutoff feature powers the sight down after 8 hours of inactivity. The CT RAD Max installs on most MIL-Spec Picatinny rails. Made of 7075 aluminum. Incudes (1) CR2032 battery, CT adjustment tool, mounting hardware, sight cover, instruction manual.