38: Colt Diamondback in 38 Special with 4" Barrel. This special revolver features a 4" full lug, vented ribbed barrel, adjustable rear sight, a ramp front sight, a 6 shot cylinder, checkered walnut grips with the Colt medallion and a deep blued finish. The gun is in very good condition. Estimated Value: Low: $1,700 High: $1,900