Wondering if there are any restrictions on buying more than one handgun at one time from the same FFL? I know I can only sell 4 guns in a year and im pretty sure I can trade as many as firearms in to a FFL as I want but not sure on how many I can purchase? Someone mentioned a red flag going up if I purchase more than one within a 2 week period? And that I would probably be getting a call from some government agency? Is there any truth to this? Thanks