Trijicon RMR Type 2 3.25 MOA Green Dot Reflex Sight - The RMR 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. It's suitable for military, law enforcement, concealed carry self-defense, target shooting, and hunting applications. All RMR Adjustable LED sights are compatible with night vision devices, with the 3.25 MOA dot size being the most popular. The RMR Adjustable LED sight puts the illumination control in the user's hands. Easy-to-use buttons on the sides of the optic allow the user to adjust the illumination brightness, toggle between manual and automatic modes, and power down the RMR for storage. Additionally, the user can also lock out the buttons so that the RMR functions in automatic mode only. This ensures that inadvertent button pushes do not cause a loss of aiming solution. Available in green, the 3.25 MOA dot in the RM06 is the most versatile and popular of all RMR dot sizes. The dot is small enough to allow accurate shooting at range while also being big enough to locate quickly.