I’d say high cap magazines would be very much doable, and not catastrophically fail after a few rounds.
lol If someone could do 30rnd mags right now, it would be the next best thing to being able to print money!
Some would regard that as a feature, not a bug.
And if we can print out explosive devices on our home equipment, it's a whole new ball game.
Wouldn't be the first invention that people weren't sure what the utility was.