I wanted to get some opinions on the AR I purchased a year ago. Rock River Arms A4 with 18'' bull barrell. It seemed at the time that RRA might be slightly better quality than a Bushy or other "entry level" AR's. Then I saw a review of several AR's in some combat gun magazine, and RRA was pretty far down the list. The trigger seems to be a bit nicer than others. Bought gun for varmints and plinking. Paid $900, so felt like the price was right, anyway. Any feedback on RRA quality and performance would be appreciated. (Ever see any of the RRA 1911's? They seem to be VERY nice at $1,500-$2,500).