I've just had a quick troll though this topic (I'd only read the first two pages before) and I havn't seen much about the intergration rail? Any chance of photos of a gun mounted to it? Or are you planning to make something specific? Or am I a dumbass and missed something here?
Good luck. You probably going to need it. If CS dosn't make them and you make a good prototype, then put me on your waiting list.
Me and Trojan Nerf will be making them when we finish our first batch for ourselves. We will have 3 guys working in assembly line fashion at a machine shop, so, as soon as supplies are bought, we will be fine, I can estimate 80 dollars if I did the math right.
I think my old secondary (high) school had something similar to this that the used for cutting wood, although I don't really have a clue. Does that basicly mean that with one of these CNC Routers you can (in layman's terms) put in a sheet of polycarbonate and it would cut out all the parts and drill all the holes and make it almost ready for assembly (apart from cutting of the rods for the stock, barrel, plunger tube and anything else not made from polycarbonate). At a comletely random guess this would cut the time to make one down by like 2/3's? Or (it's much more likely that) I'm just talking out talking out of my arse?
I'm currently doing research into CNC Routers, which are much more affordable ($3,000 to $6,000 for the models I'm looking at) and will be safer to use with polycarbonate than laser cutting systems would.
I should be able to make more of these some time in the next 6 months. Just have to save up for the tool and get it setup.