The Smith & Wesson Model 10, previously known as the Smith & Wesson .38 Hand Ejector Model of 1899, the Smith & Wesson Military & Police or the Smith & Wesson Victory Model, is a revolver of worldwide popularity. It was the successor to the Smith & Wesson .32 Hand Ejector Model of 1896 and was the first Smith & Wesson revolver to feature a cylinder release latch on the left side of the frame like the Colt M1889. In production since 1899, it is a six-shot double-action revolver with fixed sights. Over its long production run it has been available with barrel lengths of , , , , and . Barrels of are also known to have been made for special contracts. Some 6,000,000 of the type have been produced over the years, making it the most popular centerfire revolver of the 20th century.