Don't post any discriptions or links.
This is a great way to get a visit from BATF or worse yet get Jim in trouble.
I don't know any descriptions or links, so that's not a problem. I'm mostly interested in this because it represents a limit, however small, on the power of the Federal government.
Besides, I'd bet that many states already ban or regulate possession of machine guns. You can bet that California will do so pronto, if it hasn't already.
In any event, if I were interested, I'd certainly do a lot of research on that question first.