The open reflex Romeo3 sight is the ideal sighting solution for rifles, shotguns, carbines, sub guns, and full size handguns and is designed with Picatinny and KeyMod mounts in mind. Features MOTAC, a motion sensor for automatic on/off, and manual brightness control. Our proprietary red-notch coating ensures a brilliant red-dot. ROMEO3 is perfect for those moments when you barely have time to blink.