I'm new here and a new owner of an AR. Colt flat top upper and DPMS lower with quad rails. Looking to put a decent red dot or reflex style optic on my new toy and I'm overwhelmed with all the different brands and styles that are out there. From my research online and talking to fellow shooters I know that eotech, aimpoint and acog make some great products but they are a little out of my price range. I know you usually get what you pay for but I'm looking for some feedback/options in the $200.00 range. Also any product lines I should stay away from. Primary use of this weapon is self defense and target shooting, never more than 100 yards for the most part. Any info/opinions are greatly appreciated.