Yeah, but, no offense, I haven't exactly heard great things about Superior Arms.
As a general rule, for a good AR reciever(i.e. Stag, RRA, Bushmaster, etc.)
, you should pay about $250-$300. Of course, that's assuming you can't find a good bargain. But then you have add another $500 or so to the price of a complete upper reciever, and the cost of a buttstock, which could be as much as $100, depending on what you want.
I actually just got an AR a few months ago. An RRA National Match. I haven't been able to get out to the range a lot with it, so I really don't know what it's capable of, but it's done pretty darn well from what I've used of it(especially considering the fact that I REALLY need to go get my eyes checked out). The prices on guns are a little steep in my area(MD), so I paid about $1200 for it, but it typically goes for $1000 or $1100.
And, before you ask, I'll try and take pics of the collection and post them up tonight or tomorrow.