I don't believe there is any amendment allowing the Federal government to claim supremacy over firearms issues.
The fact that they have done so is related to interstate commerce.
That is why I can buy and sell firearms to other citizens in my state with only a sales receipt.
The sales receipt is not strictly necessary but provides proof a legal sales transaction was made.
California has no state right to keep and bear arms. How convenient!
http://www2.law.ucla.edu/volokh/beararms/statecon.htm
The fact that they have done so is related to interstate commerce.
That is why I can buy and sell firearms to other citizens in my state with only a sales receipt.
The sales receipt is not strictly necessary but provides proof a legal sales transaction was made.
California has no state right to keep and bear arms. How convenient!
http://www2.law.ucla.edu/volokh/beararms/statecon.htm