In the Holosun HE503C Elite Reflex Sight, users will find all of the enhanced options that make these optics one of the must-have aiming systems for your rifle. This compact, easy-to-use sight features multiple aiming options that can be accessed with a simple button push, and the design and construction of the sight means that shooters can rely on it in any conditions, even without batteries! Each Holosun HE503C Elite Reflex Sight is built with a CNC-machined Titanium housing and is outfitted with a solar cell and a high-capacity battery that provides dual power sources for the dot sight. Powered by a single CR2032 battery, this sight can run up to 50,000 hours on a mid-range settin Mfg: Holosun