For those who have not followed all of the detailed blow-by-blow of the Heller case, Nelson Lund has a useful summary of the various legal positions here.
Another very significant grammatical feature of the Second Amendment is that the operative clause ("…the right of the people to keep and bear Arms, shall not be infringed") is a command. Because nothing in that command is grammatically qualified by the prefatory assertion, the operative clause has the same meaning that it would have had if the pre-amble had been omitted or even if the preamble
were demonstrably false.
Suppose that a college dean announces: "The teacher being ill, class is cancelled." Nothing about the dean's prefatory statement, including its truth or falsity, can qualify or
modify the operative command.
there is no constitutional right to vote.
You can't simply restrict all rights of ex-felons. What justification would a state have in keeping an individual from exercising his or her constitutional right to own a firearm simply because he or she committed perjury or wire fraud? Could the state take away the individual's right to practice their religion as well?
the most significant grammatical feature is that its preamble is an absolute phrase. Such constructions are grammatically independent of the rest of the sentence and do not qualify any word in the operative clause to which they are appended