The Leupold 177156 is not just a pistol sight, but a versatile tool capable of performing excellently on an AR platform as well as on a handgun. Its DP-Pro AR Mount enhances usability by bringing the red dot to the optimal height, optimizing performance without adding unnecessary weight or bulk. This design feature makes it the perfect choice for AR pistols or lightweight builds which require minimization of weight. Effortlessly fitting any Picatinny rail, this mount aligns the DP-Pro to just the right height for ARs. Precision is key with all Leupold riflescopes, and the Leupold 177156 is no exception. It\'s meticulously designed, machined, and assembled in the USA under strict quality controls. This guarantees you a reliable product backed by a lifetime warranty. One of the standout features of the Leupold 177156 is its innovative Motion Sensor Technology (MST). Designed to ensure your battery lasts as long as possible, MST automatically shuts off the illumination after five minutes of inactivity. However, as soon as movement is detected, the illumination quickly kicks back into gear. This smart technology ensures your sight is always ready for action, extending your battery life and keeping you in the fight for longer.