What kind of range shooting are you going to be doing? If trying to shoot tiny groups on paper is really important to you...ignore this post.
Personally, I love clear glass and illuminated reticles. For shooting steel targets and hunting, I really like my Trijicon accupoint and Leupold VX-R. The Trijicon is likely out of your price range. A Leopold 3-9X VX-R with firedot is perfect for me for hunting and shooting steel at AR .308 ranges. It is also in your price range. While not as good for shooting small groups on paper, it is vastly superior for engaging moving targets IMO.
I also refuse to buy a scope without seeing how good the glass is in person. So I can't comment on the quality of glass in the economical Primary Arms scopes. I would be very surprised if the glass was as good or better than a Leupold VXR. The magnification is wasted if the glass isn't clear.