You order 1st the background check is done by the local FFL that you select to receive the gun and do the transfer paperwork

Paris, order 1st, and all necessary background, paperwork, transfer of the firearm to you and collection of the "Transfer Fee (usually $20 to $35) will all be handle by the local FFL dealer you select during purchase.

Buds expects a buyer to kind of police yourself if you can purchase a firearm. No domestic abuse, felon, not legal citizen, no dishonorable military discharge, mental illness, etc. But once you order and have firearm sent to dealer/FFL for transfer they will do final background check via federal form 4473 and transfer firearm or not.