The Supreme Court in Caetano v. Massachusetts, 577 U. S. ____ (2016) unanimously held that “the Second Amendment extends, prima facie, to all instruments that constitute bearable arms, even those that were not in existence at the time of the founding,” and that this “Second Amendment right is fully applicable to the States.”
"Arms" Anything that a man wears for his defense, or takes in his hands, or uses in his anger, to cast at or strike at another.
"Prima facie" Based on the first impression; accepted as correct until proved otherwise.
District of Columbia v. Heller, 554 U.S. 570, 592, 171 L.Ed 2d 637, 128 S.Ct. 2783 (2008) did not limit the right to bear arms. It specifically stated, “Second Amendment implicitly recognizes the pre-existence of the right and declares only that it ‘shall not be infringed.” The Court reiterated, “Our opinion is, that any law, State or Federal, is repugnant to the Constitution, and void, which contravenes this right, originally belonging to our forefathers.”