Well, yes and no. Hell need a sales tax license number in order to sell it to someone in Pennsylvania. And no he doesnt need an FFL to sell a Flinter (a good ole Pennsylvania long rifle, incorrectly referred to as the Kentucky rifle by that heathen scum) to someone in Pennsylvania. If its one of those low-down, stickin, lousy, snake-in-the-grass zip guns of which I will not acknowledge as a true muzzleloader, then yes hell need an FFL.