My buddy (childhood friend) makes the barrels and other parts.. He also assembles the parts.. I must say that I trust him as he is an accomplished and fine machinist.
Many of the ideas you see unfolding now me and him were implementing at the age of 19 in his fathers machine shop.. Late 80's early 90's. he visited last Christmas with a bottle of Vodka as i live in Ks and he now in Az. We sat and chatted as he talked about the reliability the tolerances and craftsmanship that goes into each upper VS other manufacturers.
For propriatary reasons i wont let on about anymore as they may not want to share.. Who knows..
Many prototypes are in the works.. They are cutting edge and the machine work is the finest. I personally know and am convinced ;) Hope this helps although anyone reading this probably doesnt know me personally. So its all just heresay.. Trust me though to Quote Tigerstripe "its the Shiznit"