the trigger design could be one of "press-up" more than "pull-toward you"-design.
suppose the design itself could've been crowd-sourced, like this one:
though, I kinda remember hearing him in an interview that the one depicted in the Forbes article is mostly the DEFCAD team's own design.
It's a great proof of concept though.
Still, I'd have preferred it, had the grip-design not looked like they simply lifted it off a stock AR Grip, and modified it ever so lightly. but that's just me. lol.
PS. I cannot get over nerd-laughing over the cross-section cut of the barrel profile: it's a dang penis with balls! LOL
ach heck, with all these things as long as 'cycling a next round'-loading system isn't the purpose of a given design, all you need is a tube that will stay intact for at least a single firing cycle, with a 'breech' that will hold the cartridge steady enough to strike it with some pin.
Predictions in due Time...
"Let it not be said that no one cared, that no one objected once it's realized that our liberties and wealth are in jeopardy." - Dr. Ronald Ernest Paul
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