The Holosun 507C-X3 is an open reflex pistol sight designed around the RMR footprint with a selectable Multi-Reticle System. Its 2 MOA dot, 32 MOA circle, or combined circle-dot reticle provides flexibility between precision and rapid target acquisition, while Solar Failsafe and the forward-facing photodiode automatically manage brightness as lighting conditions change. Shake Awake, the side-loading CR1632 battery, and 7075-T6 aluminum housing provide a practical combination of convenience and durability for carry, duty, and range use.