Let’s start off talking about close quarter combat optics and why they are meant for close quarters.   First of all, you are going to want a zero magnification optic with the widest field of view or probable not more than 2x even though the majority are rarely more than 1.5x.   Everyone has different eyes and not everyone picks up colors the same so these opinions are mine and not something to be taken as a rule, but understanding the reasons why low or zero powered optics are good for close up fighting is important because fancy accurate optics don’t mean anything at 50yds and under in determining who gets a hit and who doesn’t.   You can probable blind fold someone and let them hip shoot at those ranges and they might be able get more hits on paper in a faster time period than someone actually aiming.

Quick detach mounts is probable the way to go for any optic especially one being used for self defense.   A broken optic is something you don’t want in the heat of a fight and the Trijicon SRS sights for sale like the SRS02 is the best configuration.   Some  people want laser sights on their guns and others just want a red dot.  4 MOA red dots seem to be very common but a dot that sizes is 12inches at 300yds and that is not going to be a practical optic for any medium range engagements.  The Trijicon SRS quick detach SRS02 as well as the SRS01 have a 1.75 inch red dot which makes medium range and more precision shooting.  With 1 AA battery this solar powered AR15 combat optic might give you up to 5yrs depending on how much you use it in available light.   This very precise red dot has a shorter housing than any of the Aimpoint optics