"It would give to persons of the negro race, ...the right to enter every other State whenever they pleased, ...to sojourn there as long as they pleased, to go where they pleased ...the full liberty of speech in public and in private upon all subjects upon which its own citizens might speak; to hold public meetings upon political affairs, and to keep and carry arms wherever they went."
While that Supreme Court was whacked enough to not consider even free blacks to be people/citizens capable of having standing to sue...even they recognized the basic right of citizens to possess and carry arms, without question and fundamental. Only real people have the right to keep and bear arms wherever they go.
The above is from the Dredd Scott decision.