In Hurtado v. People of the State of California, 110 US 516, the U.S Supreme Court states very plainly: "The state cannot diminish rights of the people."
And in Bennett v. Boggs, 1 Baldw 60, "Statutes that violate the plain and obvious principles of common right and common reason are null and void." "The assertion of federal rights, when plainly and reasonably made, is not to be defeated under the name of local practice."
Davis v. Wechsler, 263 US 22, at 24. "Where rights secured by the Constitution are involved, there can be no rule making or legislation which would abrogate them."
Miranda v. Arizona, 384 US 436, 491. "The claim and exercise of a constitutional right cannot be converted into a crime."
Miller v. US, 230 F 486, at 489. "There can be no sanction or penalty imposed upon one because of this exercise of constitutional rights."
Sherer v. Cullen, 481 F 946. The 2nd Amendment is a constitutional right.