You see, I got a letter from the ATF. What could it be? My application for my class 7 FFL. What does a class seven get me? Easier to list what it doesn’t. I can buy, and sell firearms, I can buy, and sell NFA items, suppressors, short barrel rifles, short barrel shotguns, and fully automatic weapons. I can manufacture and sell firearms including NFA items. What I can’t do is deal in explosives or destructive devices, and I can’t import firearms in to the country.