There is NFA 34(?) which restricts possession of FA weapons but in most states, after local sheriff hoops and batfe hoops you may have one. NV is one such state as is FL and MS. I know there are lots more.
I understand that to be the case and I therefore consider that an infringement. A fully automatic weapon is quite reasonable if you must defend yourself against a mob. If I am correct the National Firearms Act had been tested in court and in one case (can’t recall the name) the ban on sawed-off shot guns was upheld finding that weapon unsuitable for military service (a lie), yet upholding the ban on machine guns, quite suitable for military service.
My issue is with government intervention to bar perfectly reasonable measures for self-defense.