Savage Arms 19486: The Stevens 320 shotguns are well-built imported models carefully selected for their performance and value and provide many features only found on more expensive models. The 320 Security Pump features a proven rotary bolt design and dual slide bars for reliable operation. The receiver is a bottom load with right eject. This 12-gauge model has a black synthetic stock, 18.5\" blued barrel with a cylinder bore and bead front sight.