Hey folks, newbie here. This is my first post and I've search the forums for this particular question before making this post. I apologize if I've missed something.
Ok, A friend of mine has a WWII hangun of some sort (no idea what kind) but it's definetely made after 1898 so I don't believe it will qualify as an antique. My question is what needs to be done in order for this firearm to be registered/legal or whatever needs to be done so that he won't get in any trouble. It's just something he keeps as a collectible. I am just not familiar with the procedure for this. Thanks in advance for any replies and my apologies for any typos and/or misconceptions.