The Model 360 is an AirLite J-frame .357 Magnum revolver with a Scandium alloy frame and stainless cylinder. Slightly heavier than the Model 340 M&P due to the exposed hammer (the 340 is hammerless), the 360 allows single-action shooting — useful for precise shots at moderate distances. The exposed hammer is a marginal snag risk compared to the hammerless 340. Type: Revolver Action: Double-Action Caliber: .357 Magnum Capacity: 5 Year introduced: 2001, USA Weight: 14 oz Overall length: 6.3" Status: Active Intended use: concealed_carry, self_defense, outdoor