The EMF Company Hartford Pinkerton is a usa-made single-action revolver chambered in 45 Colt, introduced in 1995. Primary use: Cowboy Action, Collecting. Type: Revolver Action: Single-Action Caliber: 45 Colt Capacity: 6 Year introduced: 1995, USA Weight: 32 oz Overall length: 9.5" Status: Active Intended use: Cowboy Action, Collecting