What red dot are you running and why?

I have a holosun 508T on my Walther PDP and it's pretty awesome. I want to know what you are running and why.Gimmie some details like:-optics brand and model -Gun brand and model -cowitness sights? What kind? -dot color -why you chose this optic gun combo -do you like it/do you regret itI'd love to see what y'all are rocking via /r/CCW https://ift.tt/epXmbwr