Wanderlust World Wanderlust World Yes, Maine is an open carry state. Any person who is legally permitted to possess a firearm (i.e., not a prohibited person) may openly carry a handgun or long gun in public without a permit. No license is required for open carry. However, a permit is needed for concealed carry (though Maine also allows permitless concealed carry for those 21+ or 18+ with military training). Restrictions apply in schools, courthouses, federal buildings, and private property where posted.