Soo... that's all they have it seems. The basis charge for all charges being their contending that they were mfg'ing and distributing "machine gun conversion PARTS".Here is the initial indictment, don't know how much if any this changed by the time they got to trial
https://storage.courtlistener.com/recap ... 9.57.0.pdf
Everything hinges then on if a judge and jury accepts the interpretation of the NFA by the alphabet that lines on a piece of flat metal constitute an actual "part". That seems like quite a stretch. I mean, if you put lines on a rectangular block of aluminum... is that a "firearm"?
I'm sticking with the, "we know it doesn't hold water but we will destroy you, anyway... because we can" theory.