The members of militias at the time of the ratification of the 2nd amendment were required to supply their own guns by statue, which is how you get the individual right - from the duty to be a member of the militia. Which still exists today (though in statute it is often called the "unorganized" or "state" militia to distinguish it from the National Guard, which is actually a branch of the US Army by statue: https://en.wikipedia.org/wiki/National_Guard_(United_States)...