The HS512T Reflex Sight is built with a solid titanium housing, wide field of view and a tool free battery tray. This optic is equipped with our Multi-Reticle System with three reticle choices: A 65 MOA circle and dot reticle, a 2 MOA dot only, or a 65 MOA circle only. The battery lasts up to 5-years and the optic is equipped with Holosun’s Advanced Solar Fail-safe technology.