The action is the gun as stated before, so it will have to be purchased following the same rules as any firearm.
But the law does say you can buy the action and have it exported by the dealer to a dealer in your country. each dealer is allowed to export& import a few firearms each year if they fill out the proper paperwork, you can speed up the process if you have any paperwork from your end ready when you go to the dealer here.
their may be a charge for all the paperwork and you may have a fee for importing (duty) the action. In some cases it is easier to purchase the whole gun and strip it when you get it and sell the extra parts, you could make back some of the costs.
Good luck.