Effective December 15, 1791
Articles in addition to, and Amendment of the Constitution of the United States of America, proposed by Congress, and ratified by the Legislatures of the several States, pursuant to the fifth Article of the original Constitution.
PREAMBLE
The conventions of a number of the States having at the time of their adopting the Constitution, expressed a desire, in order to prevent misconstruction or abuse of its powers, that further declaratory and restrictive clauses should be added: And as extending the ground of public confidence in the Government, will best insure the beneficent ends of its institution.
Amendment II
A well regulated Militia being necessary to the security of a free State, the right of the people to keep and bear Arms shall not be infringed.
Well yeah, its difficult to understand how the Courts could rule it as a collective right for a clear-thinking person, but its also hard to understand how they can rule the Constitution requires abortion rights and gay marriage, but they do out of the fact that the Left sees the Judiciary as the only branch of govt through which it can impose its unpopular views.
That Americans had a right to own guns was most certainly taken for granted at the Founding. It probably didn't occur to them that it would ever be questioned. The Constitutional approval of militias was probably a much bigger deal. But in no way is the individual right to own guns dependent on service in a militia. That's crazy.
But crazy is what liberal judges do best.