Well, it's more of an issue of - okay, yes, before buying a gun you should shoot one like it just to be sure it's comfortable in your hands, that the safety and magazine release and the like are readily accessible, ideally that it's one you can assemble and disassemble (...says the MK III owner...) and so on. But if somebody feels eir life to be in danger, whether because e lives in a dangerous neighborhood, or has been threatened in the past, or whatever, it shouldn't be any more difficult than it has to be for em to get a gun. And in practice restrictions on gun ownership just make it more difficult to do legally, so...

Totally agreed on accessories, especially since one can construct an adequate single-use suppressor relatively cheaply (just not, y'know, legally). Especially for indoor ranges (not that I ever want to shoot in one again), it'd be nice for suppressors to be available. I can see their use when hunting, too. But oooooo scary silencer, bad guys use silencers, oooooo, whereas opening the machine gun registry to new machine guns doesn't make it necessarily any easier to get one, just brings the price down into "affordable by people who aren't ridiculously wealthy" territory. (Of course, shoelaces can be machine guns, and I am aware of a query sent to the ATF about whether hamsters might also be machine guns...)