If one faced multiple armed attackers who had weapons other than firearms, a so-called assault weapon would definitely be needed. Six bullets wouldn't be enough. As Wolverine pointed out, moreover, the state has no right to disarm people of non-military weapons any more than it has the right to steal a person's home.

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"I am a Tory Anarchist. I should like every one to go about doing just as he pleased- short of altering any of the things to which I have grown accustomed." (Max Beerbohm)