shells and in four models that could be upgraded by engraving, grade of wood and finish: The Regular Gun, Trap Gun, Messenger Gun and Two Shot Automatic. It was a design that would eventually come to be known as the Auto-5, A-5, Browning Automatic, “Humpback,” “Wild Mule,” or “Aristocrat of Automatic.” As introduced, the Auto-5 was chambered for 12-ga. The first Auto-5 was shipped to Browning on September 17, 1903. When Winchester wouldn’t let Browning have the royalties on the Auto-5, the inventor took the design to Fabrique Nationale in Belgium, which was delighted to produce the gun.
