At various times, conversion kits were sold allowing the pistol to fire other rounds, including .45 ACP, 10 mm Auto, and .357 Magnum. Later, the Mark IV model was designed specifically to handle high pressure .44 Magnum loads, and the Mark V was designed to chamber the still more potent .50 AE.
The pistol could be adapted to fire different ammunition types over time, including .45 ACP, 10 mm Auto, and .357 Magnum. The Mark IV model was specifically designed to handle high-pressure .44 Magnum rounds, while the Mark V was built for the even more powerful .50 AE cartridge.