I have had 3 Bushmaster rifles; the Varmint Special (the wife's gun), a run-o-the-mill 16" A2 carbine (sold), and the ACR. No issues with any of them. I wouldn't have sold the A2, but I wanted an A3 for mounting optics. As you probably know now, $800 wasn't bad.
also, will be getting ahold of a ton a mil spec 30 rd mahs for ar, about 50. once i get my posts up ill try to sell some on here for u guys at a god rate