The M3 Convertible semi-auto pump shotgun is reliable and versatile for any operational or defensive requirement. Officers have the option of choosing either semi-auto or pump-action, depending on the intended purpose. The M3 delivers fast cycling semi-auto fire with conventional loads or pump-action for low-energy special purpose loads. Available in 12-gauge. Ghost ring sights and a receiver-mounted Picatinny rail. Available with collapsible telescoping buttstock. Ultra-reliable Inertia Driven® system (semi-auto operation).