I was surprised to find waiting periods were a State thing. I'm from the great state of Missouri where the only thing that stops me from buying a handgun on my lunch break is my wife's cold stare of disappointment that I would waste money like that. However when I lived in Florida, I bought a pistol on the internet and it was delivered to an FFL in the area. It took the gun a week to arrive which I expected, but it was incredibly stupid that I then had to wait an additional three days to buy the gun from the FFL. I get what they're trying to do, to prevent crimes of passion, but come on! I ordered it on the internet. That three days figure originally mentioned is the length of time that the FBI has before an FFL can legally sell someone a gun without a fully complete background check. So if you buy a pistol and the run the check, but the FBI doesn't give a yes or no, you don't have to continue to wait forever. They can sell you the pistol after three days.