Reminder that the NFA ban on sawed off shotguns was upheld by the Supreme Court in the 1939 case United States v. Miller, using the justification that sawed off shotguns were not weapons of war and therefore had nothing to do with the operational support of a militia and were therefore not protected by the 2nd amendment.
Which would logically mean that any legislation drafted with the justification of "take these weapons of war off our streets" is inherently unconstitutional, yet somehow no one ever acknowledges this….