Savage Arms 320 Security Matte Black 20 Gauge 3in Pump Shotgun - 18.5in - The Stevens 320 Security Pump Action Shotgun is what you need for a home defense shotgun! This is a 20 gauge shotgun with an 18.5in barrel and a magazine tube that holds 5 rounds. It has a full black synthetic stock with a vertical pistol grip for excellent control. It features a proven rotary bolt design and a dual slide bar action. This shotgun is a fantastic home defense choice for a smaller framed individual or anyone concerned about weight and recoil.