Finally got around to finishing one of my AR15's. I had a bunch of 80%lowers made and finished out one of them. I also had a couple feet of raw hand guard extrusion kicking around from an un named companies ar10 stuff and wipped up a design in solidworks to machine one. I'm pleased with the design but am going to tweak the attachment method to the barrel nut a little. It ended right at 12oz. I think I can shave another ounce and half off. Both the lower and the hand guard will eventually get coated but they look kind of cool raw.
dang that is sweet.