Maryland May 30, 2022 6:32 pm Maryland Ban On Ghost Guns Begins Wednesday Starting Wednesday, it will be illegal in Maryland to buy or sell so-called ghost guns, which are firearms that don’t have serial numbers. Local 1:08 Walt Whitman High School evacuated after threat; nothing found 1:56 Neighbors concerned after shooting at Bailey's apartment complex 0:59 Tony Perkins judges science fair at WB Patterson Elementary 1:36 Man killed in Bailey's Crossroads shooting 1:41 1 killed in shooting outside District Heights apartment complex