If you had one trip in a time machine what firearm related thing would you do?
<<Emphasis added by staff.>>
Id go back to 1938 and Make sure WE won the Miller case at the Supreme Court to get the GCA of 1934 declared unconstitutional!
https://en.m.wikipedia.org/wiki/National_Firearms_Act
In 1938, the
United States District Court for the Western District of Arkansas ruled the statute unconstitutional in
United States v. Miller. The defendant Miller had been arrested for possession of an unregistered short double-barreled shotgun, and for "unlawfully ... transporting [it] in interstate commerce from Claremore, Oklahoma to Siloam Springs, Arkansas" which perfected the crime.
[49] The government's argument was that the short barreled shotgun was not a military-type weapon and thus not a "
militia" weapon protected by the Second Amendment, from federal infringement. The District Court agreed with Miller's argument that the shotgun was legal under the Second Amendment.
The District Court ruling was overturned on a direct appeal to the
United States Supreme Court (see
United States v. Miller). No brief was filed on behalf of the defendants, and the defendants themselves did not appear before the Supreme Court. Miller himself had been murdered one month prior to the Supreme Court's decision. No evidence that such a firearm was "ordinary military equipment" had been presented at the trial court (apparently because the case had been thrown out—at the defendants' request—before evidence could be presented), although two Supreme Court justices at the time had been
United States Army officers during
World War I and may have had personal knowledge of
the use of such weapons in combat. The Supreme Court indicated it could not take
judicial notice of such a contention.
The Supreme Court reversed the District Court and held that the NFA provision (criminalizing possession of certain firearms) was not in violation of the Second Amendment's restriction and therefore was constitutional.
Subsequent rulings have been allowed to stand, indicating that short-barreled shotguns are generally recognized as ordinary military equipment if briefs are filed (e.g., see:
Cases v. United States),
[50] describing use of short-barreled shotguns in specialized military units.