The Vaquero is Ruger's fixed-sight single-action revolver designed specifically for Cowboy Action Shooting (CAS) competition. It uses a fixed rear notch sight in the top strap rather than the adjustable sight on the Blackhawk, matching the traditional appearance required by CAS rules. The transfer bar safety allows safe carry with all six chambers loaded. Type: Revolver Action: Single-Action Caliber: .45 Colt Capacity: 6 Year introduced: 1993, USA Weight: 41 oz Overall length: 10.5" Status: Active Intended use: Cowboy Action, Range