Holosun Red Dot Sight HS503BU

The Holosun HS503BU 2 MOA Red Dot Sight is housed in a durable, aluminum housing that has a unique U-shape design that protects the windage and elevation turrets on two sides. Parallax free with an unlimited field of view, these Red Dot Sights by Holosun have an incredible battery life of up to 5 years on a single CR2032 battery located internally and accessible through the internal tray on the side of the optic. The Holosun HS503BU 65 MOA Circle Dot Scope features Shake Awake motion sensor technology that turns the optic on whenever movement is sensed and automatically shuts back off once the movement has subsided. For a reliable, versatile sight that will increase your accuracy and speed up your target acquisition, choose the Holosun HS503BU Parallax Free Red Dot/Circle Sight.