Although it appears to be a conversion the model 1872 Open Top was Colt’s first revolver specifically manufactured to fire a cartridge. Since Colt did not use percussion revolver parts the revolver was manufactured as an entirely new model first with Navy-sized grips later with Army-sized grips. All come standard with case-hardened frame and blue barrel finish. Nickel finish frame and barrel are available; add N00 to model number. Features: Army grip-backstrap and trigger guard are steel. Shown with case-hardened frame. Manufactured with forged frame. – Barrel Length: 7-1/2 Inch Round – Caliber: .45 LC – Capacity: 6 – Weight: 2.51 lbs – Finish: Blue Finish with Case Hardened Frame – Grip/Stock: Walnut – Sights: Blade Front Rear sight on back of barrel – Overall Length: 13.3 Inches