I'm all for the guy's right to do what he did, but I am curious...
He made over 20 guns and "never fired" them? I'm gonna hope this was a lawyer tactic, because how do you move on to the second gun, let alone the fourth or fifth in the same style, without actually making sure the first one works?
Like what was he planning on doing with them if he hasnt fired any of them? Maybe if he was experimenting with different designs or something, but it looks like he was just cranking out bog-standard 80% ARs and Polymer80 Glocks. If he has an actual shop and a mill, it's even more shit-simple. An afternoon project at most.