The Trijicon RMR® Type 2 LED reflex sight is designed with a patented housing shape that absorbs impacts and diverts stresses away from the lens to increase durability. It also offers redesigned and upgraded electronics that have been proven to perform when mounted on slide ride pistols and other small arms. The battery-powered Trijicon RMR Type 2 LED features a sensor, which automatically adjusts the brightness of the illuminated red dot based on ambient lighting conditions. It’s suitable for military, law enforcement, concealed carry self-defense, target shooting, and hunting applications.