Konus 7217: Konus\'s assortment of Red Dots features many invaluable tools for the highly professional tactical field. Some of these models are so compact that they can be mounted on pistols, archery equipment, shotguns, and traditional rifles as well. Among them, the #7217 is uniquely versatile because it comes with a dual mounting system and with a special riser that allows for much higher placement if needed. It also has the option of illuminating the dot in either red or green and adjusting the brightness from pre-sets ranging from 0-8. The lens is nitrogen-filled to counteract fog up and will fit any standard Picatinny rail.