My grandfather has a couple rifles and a shotgun that were recently given to him by a friend in MA. He wants to hand them over to me. Do I need to go through a dealer in NH to transfer them over to me? Not sure what kind of paper trail these have but they weren't transfered to my grandfather, just given face to face with no paperwork (friend was no longer able to have guns legally). Note: grandfather holds ltc in MA. I'm pretty sure I have to have it transfered under federal law but not 100%...