Assault Weapons,ie: machine guns, have been banned in the USA for more than 80 years.
-you have to get a $200 federal tax stam, go thorough a bunch of legal hoops and then pay the going price from a Class 3 dealer (which will probably start at about $7000-8000 per gun for the least expensive---
Not really. If you got the time and money (big money), you too can have a full auto weapon. Of course subject to local laws. I know in FL and NV and several other states, it’s perfectly legal to own a full auto weapon. Just hoop jumping and big bucks required.