Holosun

The HS503GU is a micro red dot designed for day and night use, unaffected by extreme weather conditions. You have the option of using a 65 MOA circle dot reticle or switching to a 2 MOA dot only. The advanced LED allows up to 50,000 hours of operation on one battery. The shake awake sensor with last setting recall automatically turns the optic on with the slightest movement. There are 12 settings for the intensity of the red dot to match the ambient lighting conditions. The top mounted buttons allow for easy operation without obstructing the user's vision. A housing design shrouds the windage and elevation turrets on two sides and the battery is mounted on the side of the optic. Includes a low mount and 1/3 Co-witness mount.