While I'm pretty sure that it is illegal to borrow or loan a pistol without a purchase/transfer permit, I am curious if anyone can point me to official documentation on the legality of borrowing a shotgun or rifle. I spoke to M.S.P. today, and they told me that if the gun is over 30 inches, that the laws are regulated by the ATF, but I have not been able to get a hold of anyone there despite leaving several messages. I am just looking to use my brothers shotgun while I am up north for vacation. Thanks for any help!