Mebbe my favorite scene in the movie "The Highwaymen" with Woody Harrelson was where Frank Hamer (Kevin Costner) goes into the neighborhood gun/fun store and starts buying machine guns, etc, off the rack. A Thompson was in the bunch. He got a drum mag and a bunch of stick mags too. I think our founding fathers fully intended for that to be the norm, viz. the citizenry owning the same guns as the govt. Else, how could we defend against jack boot thugs from the govt?