A well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not be infringed.
The U.S. Supreme Court interperted the following Amendment to mean everyday citizens have the right to own guns when it struck down the D.C. gun ban in D.C. v. Heller.
Justice Antonin Scalia, writing for the majority, stated, "In sum, we hold that the District's ban on handgun possession in the home violates the Second Amendment, as does its prohibition against rendering any lawful firearm in the home operable for the purpose of immediate self-defense ... We affirm the judgment of the Court of Appeals."
I agree 100% percent. Everybody has the right to own a firearm bar convicted felons and the insane.