The python features modern stainless steel alloys and a re-designed rear sight.Thirty percent more steel beneath the rear adjustable target sight gives you a stronger revolver and more robust shooting experience.A recessed target crown, user-interchangeable front sight.The python is chambered in.357 magnum and also accommodates 38 special cartridges.Caliber: 357 MagBarrel Length: 4.25"Capacity: 6Barrel Length Range: 4" to 4.99"Hazair: Yes