Thanks man - I've gathered from doing a little research and the replies to my initial post that it pretty much differs from state to state.
As far as guns in the UK - from my understanding you can only obtain a shotgun or rifle license but you have to prove to the police that you have good reason to own one - basically you have to be white, upper class and live in a rural location. But even that will probably change now because some crazy Trump worshipping cac went on a shooting spree not too long ago. You used to be able to get a license for handguns decades ago but there was a mass shooting at a school in Scotland (Dunblane - the UK's version of Sandy Hook) so after that they were scrapped altogether.
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Think if I ever moved to America this would be my first purchase...
loving mine