Webley introduced the WS model revolver in 1902, combining the square grip of the earlier WG model with the mechanical system of the Mark IV government revolver. The new WS pattern was available in both Army (6” barrel and fixed sights) and Target (7.5” barrel and adjustable sights) patterns. In addition, a small number were made in .22 rimfire. These were not single shot conversions, but fully functional 6-shot .22 caliber guns. The cylinders are distinctively stepped, and the barrel has a standard external profile but a .22 caliber bore.