Seven-shot .357 Magnum revolver with an interchangeable 9mm cylinder, allowing the shooter to use either caliber with a single firearm. Heavy-barrel Tracker series. Type: Revolver Action: Double-Action Caliber: .357 Mag Capacity: 7 Year introduced: 2016, Brazil Weight: 44.5 oz Overall length: 9.5" Status: Active Intended use: Sport, Home Defense