S&W .45 ACP revolver on the large N-frame, adopted alongside the Colt Model 1917 as a stopgap sidearm. Brazil purchased these through the 1930s and used them in WWII. Type: Revolver Action: Single-Action Caliber: .45 ACP Capacity: 6 Year introduced: 1917, USA Weight: 40 oz Overall length: 10" Status: Discontinued Military use: Yes Intended use: military