The .41 caliber version of Colt's Model 1877 double-action, nicknamed the Thunderer. A preferred backup for lawmen and outlaws of the era. Type: Revolver Action: Double-Action Caliber: .41 Colt Capacity: 6 Year introduced: 1877, USA Weight: 24.5 oz Overall length: 10" Status: Discontinued Intended use: Collector, Self-Defense