We are all for states rights, but sometimes it is hard.
I am for proper state powers, to counter federal power. States do not have rights, they have powers.
Second Amendment does not say the "congress shall make not law infringing the right to keep and bear arms". It says " the right to keep and bear arms shall not be infringed." Early state supreme court cases recognized that fact.
Now we have the 14th amendment, which was written, in part, to insure that the rights of individuals to keep and bear arms would not be infringed by the states, which doubly insures that the states have no legitimate power to infringe on the right to keep and bear arms.