I have been superbly satisfied with my first AR, which is a RRA A2. It is machined very smoothly and cleanly. I like the finish on the rifle, too. It is very consistent and perfect in application.
When I first got it, the bolt/carrier/gas tube was a little tight. Took about 100 rounds to get it to function perfectly (had a couple FTF's). I chalk that up to very close tolerance machining, which is a good thing. Nothing was out of spec or alignment, just tight. Since then it has been the best rifle I have ever owned, and secured a place as my favorite weapon, by far.
RRA states 1 MOA accuracy. Mine is absolutely good for that. I shoot those little 1' Shoot-n-See targets at 50 and can hit them every time, if I do my part. At 100 yards, if I miss, it's by 1/2 inch or less. That's with M193 ammo.
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