>CNC would be a very useful addition to the toolbox
Pardon me for being late to the party, gentlemen, but I sure hope the Ghost Gunner(tm) gets mass produced; especially if it's the 3rd model. That one can CNC an M1911 frame on top the AR lower previous renditions were known for, IIRC. Dunno how hard it would be to modify the programming to make a metal frame that takes glock mags, but if someone's already modified the previous versions to engrave the AR lowers with all sorts of designs (and made the code open source), then it should definitely be within the realm of possibility.