It may be my eyes deceiving me, but the receiver looks really heavy. Does it weigh as much as it looks bulky?
While a little rough looking, I still kinda like it. Is the lug-looking thing on the magwell removable? The donut around the mag release would be victim to my dremmel tool. Have you tired fitting it with any aftermarket accessories yet, ie; a bolt assist lever (Magpul, Tactical Link, Phase5), Norgon/Troy ambi mag release... how does the back of the receiver mate up to larger grips like the Magpul MIAD? Will it require a grip wedge?
In a world where everything is getting smaller and lighter, I still recognize a market for the bench behemoths. Not necessarily my cup of tea, but I celebrate the ingenuity. I look forward to the 30-06 version. I've heard a LOT of promises over the years and most of them fall short (ex: Fidelis Arms and their 12g upper). I hope to see this come to fruition.