I have heard nothing but good things about RRA which is why I went with them. I did look at the ones you mentioned and when (not if!) I get another AR, I am going to go more high end. Anyway, as far as optics goes I think having something is better than nothing. At least a 1x RDS/HWS of some sort. Like I stated, primary use is going to be home defense, SHTF, type stuff, I want to be set-up primarily for that...but I will probably never use it in that scenario. When I do pick up another AR down the road, then I can have one built for HD and another built for mid-range to long range shooting. For now I plan on taking it to the range and shooting with the irons and RDS 0-100 as much as possible. I think it would be fun however to shoot beyond that which is why I posed the original question, before I drop a lot of coin, I want to be informed. I should probably mention that my vision is shit, I don't know if that has any bearing on the answer. I am thinking right now I will probably just go with a RDS and work up from there. I can always sell it if I want to upgrade to something different (ACOG, 1-4, etc). Any further advice is appreciated.