The RMR Type 2 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. Its suitable for military, law enforcement, concealed carry self-defense, target shooting, and hunting applications. The battery powered LED RMR Type 2 features a sensor, which automatically adjusts the brightness of the illuminated red dot based on ambient lighting conditions. The 6.5 MOA dot in the RM02 gives the user the biggest dot available in our LED and Adjustable LED operated models. The bigger dot size gives the user the ability to locate the dot quickly which is ideal for close quarter engagements, or is a great solution for those who have vision problems. The RMR Type 2 has identical physical dimensions and mounting footprint to that of the original RMR Type 1. If selecting an RMR for mounting on the Glock MOS, Springfield OSP, Walther PDP, or H&K VP9 Optics Ready, a Trijicon RMR mounting kit (AC32064) is required. *Does not include mount.