When the supply of M1911 pistols began to run low during World War I, the US Army commissioned a new revolver to augment their supply. The Smith & Wesson Model 1917 was essentially an adaptation of that company's Second Model .44 Hand Ejector, chambered instead for .45 ACP, employing a shortened cylinder allowing for use of half-moon clips, and a lanyard ring on the butt of the square butt frame. This new revolver also served to replace a range of 1890's-era .38 caliber Colt and Smith & Wesson revolvers that had demonstrated inadequate stopping power during the Philippine-American War. The Smith & Wesson M1917 is distinguishable from the Colt M1917 in that the S&W cylinder has a shoulder machined into it to permit rimless .45 ACP cartridges to headspace on the case mouth as with automatic pistols. This double-action revolver features wooden grips and fixed open sights. Its wood, its metal, and its bore are all in good condition.