The Dan Wesson Model 15 (often denoted as Model 15-2) with a 4-inch barrel is a legendary .357 Magnum revolver famous for its exceptional accuracy, crisp trigger, and unique interchangeable barrel system. It typically features a 6-round capacity, an adjustable rear sight, and modular components allowing the user to easily swap barrels. Key Features and Specifications: Caliber: .357 Magnum (also safely shoots .38 Special) Capacity: 6 rounds Barrel: 4-inch (interchangeable) Action: Single/Double Action (SA/DA) Weight: ~32-34 oz (depending on the specific barrel shroud style) Design: Known for a frame-mounted, forward cylinder latch and a barrel nut at the muzzle that locks the barrel and shroud tightly into place.