If we're throwing out Wikipedia links, here are the actual laws in Switzerland, many of which the pro-gun community in America staunchly oppose adopting, including the mandatory military service that would actually qualify gun owners to be part of a "well regulated militia".
https://en.m.wikipedia.org/wiki/Firearms_regulation_in_Switzerland
Because it turns turns billions in public funds into billions in private profits.
The fact that those profits come at the expense of children's lives doesn't worry the oil and gas industries, so why would it worry weapons manufacturers?