Montana used to have an open carry law but I don't know if it's still on the books. It came up in a criminal justice class I took at MSU 20 years ago. It may be the law still, but one thing is certain, you're still going to get to talk to the local constabulary. I've also heard that you can talk to the Sheriff and for $50 get a concealed carry permit, assuming you pass the background check.
