Let’s not forget when the STRIKER-12 shotgun was declared to illegal because it could fire 12 rounds fast.
“The Striker and Streetsweeper were declared destructive devices under the National Firearms Act with no sporting purpose by Treasury Secretary Lloyd Bentsen in 1994 and their transfer and ownership is regulated by the Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF).[8]”-Wikpedia
That set a precedent that could easily encompass all so-called Assault Weapons. It is only fear that prevents the Dems from simply doing it.