The RMR Type 2 sight by Trijicon is specifically designed to absorb impact and divert stress away from the lens making it extremely durable. The easy-to-use button on the sides allow the user to adjust the illumination brightness, toggle between manual and automatic modes, as well as power down the RMR for storage. All RMR Type 2 sights are compatible with night vision devices. All buttons can be locked in automatic mode to ensure that inadvertent button pushes do not occur.  The 3.25 MOA dot is the most versatile and popular of RMR dot sizes; small enough to allow accurate shooting while being big enough for quickly locate a target.