Are guns banned in any parts of the USA?
ThomasC ...
Technically no.
But in some States and many large cities, there are more restrictions and in some cases waiting times can be days or weeks. It all depends on what type of gun you are buying. Typically handguns are harder to get in some areas.
But if you live in some States where people are poorly educated, think that a baseball cap is "dress clothes" and most don't go to the dentist, you can pretty much buy whatever you want at any time since they figure you probably can't understand the paperwork you are signing anyway.