All - I figure this has been asked before, but I can't seem to locate the answer:

I am a PA resident. Can I buy a long arm (rifle or shotgun) from an out-of-state resident without going through an FFL? (I know that I cannot do so for a handgun.)

Example: I am interested in buying a rifle from someone who lives in MD. We would meet either in PA or in MD. Can I simply buy the rifle from him? Or since he is not a resident of PA, does this need to go through an FFL transfer?

Please only answer if you are absolutely sure. No guesses or "I think" answers.

Thanks!