I also am looking for another PCC red dot, using a DPP Pro, 2.5 moa, just not bright enough on a bright sunny day.
I am using a Romeo 1, 6 moa on my CO gun, window a little small, VERY VERY bright in any sunlight, used it on highest setting once.
Looking for something as bright as the Romeo 1, 6 moa, anyone know if the 510c, c-more railway are as bright as that?