It's complicated enough that I don't feel I can advise accurately. There are numerous features on many different firearms that are banned, also types of magazines. There are certain firearms that are banned outright, and "copycats". Have a read of the first page in this thread on a guy asking about moving to MD with his guns and you get an idea, and it's worse than that.That's a valid point. Are the laws in Maryland preventing someone from selling someone else ammo / parts?