The Holosun HE503R-GD is a new compact optic that is updated with features like their new rheostat brightness dial and a gold dot reticle. The 503 model features the MRS (multiple reticle system) that allows you to choose between a 2 MOA dot and a 2 MOA dot with a 65 MOA ring. It is machined from to the same standards as their other red dot offerings out of aluminum and provide excellent protection for the multicoated glass. Like most red dot sights, it is parallax free with unlimited eye relief and a wide field of view making it great when mounted on an AR-15 carbine, shotgun, or other close range firearms. The HE503R-GD comes with a 1/3rd co-witness picatinny mount as well as a low mount, so you can quickly set it up how you want on your preferred firearm. The gold dot reticle is 2 MOA which is quick to pick up and still precise for medium ranges. The advanced LED technology allows for up to 5 years of constant on. It runs off a single CR2032 battery and features 10 brightness settings with 2 night vision compatible modes. The Holosun HE503R-GD Gold Dot Sight is a great new option for your next rifle.