The Colt Bisley Flat-Top Target Model is the rarest configuration of the Bisley family, featuring a flat-top receiver machined to accept an adjustable target sight rather than the standard fixed groove rear sight. Produced in very small numbers between 1894 and 1912, these target-configured Bisleys were intended for serious competitive shooters who wanted the Bisley's wide curved trigger and low hammer for competition shooting. Fewer than 1,000 Flat-Top Bisleys are documented across all calibers. Type: Revolver Action: Single-Action Caliber: 45 Colt Capacity: 6 Year introduced: 1894, USA Weight: 2.7 oz Overall length: 11" Status: Discontinued Intended use: collector, competition, historical