 Gettysburg Trading Post. We buy, sell, and trade. Getting low on ammo? Set your sights on Gettysburg Trading Post. Gettysburg Trading Post carries the area's widest selection of handguns, rifles, and Maryland-compliant firearms. And new ammo is always arriving daily. Where we buy, sell, and trade. It's a WFMD belly buster. The service of Gettysburg Trading Post. They buy, sell, and trade. Americans, we all kind of, sort of, know how to play the recorder. Now...