The transfer of a firearm takes place when an FFL sells a gun to a customer or when an FFL turns over a gun to another FFL for customer pick-up.Typically, those wishing to sell a gun across state lines need an FFL dealer to facilitate the transaction, with the gun being sent to an in-state licensed dealer and the buyer picking up the firearm from them. Likewise, if a customer would like to buy a gun from you online, you must send the gun to an FFL dealer in their state from whom the customer may receive the firearm.A complete breakdown of the FFL transfer process is outlined above.