Anyone have any experience with these uppers? I came across some on Gunbroker and so far all the reviews I've read on both the uppers and the company in general have been good. Just wondered if anyone on INGO has used them before. Their prices seem very reasonable - at or below PSA prices. Hand guards are all aluminum - no poly. The odd thing is, if you go to their website, they only seem to list completed rifles for sale, not components, but they do have a variety listed on GB.