The U.S. Supreme Court holds in McDonald, that the ruling of Heller applies to laws passed on municipal levels (in addition to those on a federal level such as those in Washington, DC), by confirming that the Second Amendment right to keep and bear arms must be ensured within local and state laws (per the Fourteenth Amendment).

Justice Alito’s majority opinion is clear:

The Court eventually held that almost all of the Bill of Rights’ guarantees met the requirements for protection under the Due Process Clause. The Court also held that Bill of Rights protections must “all . . . be enforced against the States under the Fourteenth Amendment according to the same standards that protect those personal rights against federal encroachment….
The Fourteenth Amendment makes the Second Amendment right to keep and bear arms fully applicable to the States.”

To read the case click here. Court Opinion.