Excellent ar pistol or pcc optic - Holosun HE512C-GD Circle Dot Reflex Sight

I've used a wide range of red and green dot optics and settled on this gold dot for my latest AR pistol. To my eye the gold dot on this model melds the best of what both red and green dots have to offer. The enclosed design is excellent for protecting the optics and I'm just all around very pleased with this choice for my latest AR. One note is that the auto brightness seems a bit finicky at times, especially indoors where it sometimes seems not quite able to make up its mind what brightness it wants so it cycles over and over between bright-dim every few seconds. Also, if I'm in a dark/shaded area myself the optic will often choose to be dim even if my actual target is in a bright area which makes the reticle harder to see. An option to avoid either issue is to simply switch to manual brightness.