Wrong-o. There's no such thing as a class III weapon or a class III licence - it doesn't exist - commonly believed myth. The NFA of 1934 regulates things like rifles and shotguns with barrels shorter than 10 inches or which are capable of fully automatic fire to be regulated federaly (by BATF) by the issuance of tax stamps for the transfer of ownership of such weapons. There's no weapons classing system in the act, and certainly no "class III" (though you might be able to accurately refer to them as "section 2 weapons"). Also, there's no fedearly required permit to obtain a tax stamp for the transfer of ownership of one of these weapons. Here's a helpfull link: http://www4.law.cornell.edu/uscode/html/uscode26/usc_sup_01_26_10_E_20_53.html Well I certainly don't see how self defence factors into it. The constiution doesn't say anything about self defence, only the defence of the state. That aside, you'll note that the second amendment also says to "keep and bear arms" [emphasis mine, though the framers would have done well to do it themselves considering how often this clause is overlooked). The constiution isn't just securing the right to own a weapon - to keep it in a glass case and maybe take it out when no one can see it - it gives you the right to BEAR that arm. In other words all these silly laws about not being able to walk around openly carying or shouldering a weapon are unconstiutional, there's no reason that I shouldn't be able to wave my .44 around all I like. I like all of my freedoms as well, but not even the NRA seems willing to stand up for this one!