The Colt M1917 was a wartime production revolver chambered in .45 ACP using half-moon clips, produced alongside the S&W M1917 to supplement M1911 pistol production during WWI. Both revolvers used the same cartridge as the M1911. Type: Revolver Action: Double/Single-Action Caliber: 45 ACP Capacity: 6 Year introduced: 1917, USA Weight: 40.5 oz Overall length: 10.8" Status: Discontinued Military use: Yes Intended use: Military, Collector, Historical