Ruger's Blackhawk revolver meets the needs of today's single-action shooters. The patented transfer bar mechanism and loading gate interlock provide an unparalleled measure of security against accidental discharge. Its cold hammer-forged barrel results in ultra-precise rifling that provides exceptional accuracy, longevity and easy cleaning. The Blackhawk also has ramp front and adjustable rear sights along with traditional western-style, hand-filling grip. The Convertible model features two cylinders that can be interchanged without the use of tools. This model has a 5.5" barrel with a blued metal finish and a black rubber grip. It includes a 45 Colt cylinder and a 45 ACP cylinder.