This compact model was introduced in December of 1988 and was given the Model designation of Model 4516. This pistol featured a 3.5 inch barrel, a lightened frame, .260 inch wide bobbed hammer, seven shot magazine, with an overall length of 7 1/8 inch, and weight of 34 oz. In 1989 the factory became concerned with the reduced size weight slide and a heavier slide was made for this model changing the weight to 34.5 oz. This heavier slide model was called the Model 4516-1. In late 1992, the Model 4516-1 was temporarily discontinued to allow the engineers to develop an improved magazine and extractor. It was reintroduced in December 1993 with these improvements as well as a broached through breech face and widened barrel hood. When reintroduced it was called the Model 4516-2. It remained in production until the summer of 1997 when it was discontinued and replaced with the new compact .45 caliber Model 4513TSW