VIA FEDEX:
Puerto Rico is recognized as being part of the Customs Territory of the United States. As such, all processes with regard to imports and exports are to be handled in the same manner as they would for shipments consigned to any other location within the recognized Customs Territory of the United States.
Because Puerto Rico is part of the US customs territory, shipments moving between Puerto Rico and the US are not subject to import duties and shipments imported from outside the customs territory are all subject to the same import duty rates, regardless of whether the destination is the US or Puerto Rico.
FedEx will only accept shipments of firearms when either the shipper or recipient is a licensed manufacturer, licensed importer, licensed dealer or licensed collector and is not prohibited from making such shipments by federal, state or local regulations when these conditions are met. FedEx will accept and deliver firearms between all areas served in the U.S. and Puerto Rico.