Sun Devil makes milled receivers for a comparable price to forged (about $125, or so). I have two, the nice thing about them is that the lines of the receiver are sharper and there are no "mould seams" visible (or whatever you call the little rough edges left on the forgings from the dies)

I also have Stag forged lowers and functionally I don't think that it makes any difference.

Frank

"I don't know what there is about buffalo that frightens me so.....He looks like he hates you personally. He looks like you owe him money."

Robert Ruark, Horn of the Hunter, 1953