Colt's first large-frame swing-out cylinder double-action revolver, adopted by the US Army in 45 ACP and used by the Cavalry and officers through WWII. The New Service was Colt's answer to demands for a robust large-bore double-action. Type: Revolver Action: Double-Action Caliber: 45 Colt Capacity: 6 Year introduced: 1898, USA Weight: 40.5 oz Overall length: 10.75" Status: Discontinued Military use: Yes Intended use: Military Service, Law Enforcement, Target Shooting