Features: Modern sporting style gas piston bullpup semi-automatic shotgun 410 caliber 3" magnum chamber SMART Valve Piston - self-regulating gas piston system cycles both 2 3/4? and 3? magnum rounds 20" barrel for shot or slugs Reversible charging handle for ambidextrous operation Oxidation resistant chrome-plated steel barrel All barrels are proof-tested at the factory to ensure maximum durability Durable upper alloy receiver and a light-yet-durable synthetic lower receiver Shell deflector diverts spent shells downward All-weather pistol grip bullpup synthetic stock with ambidextrous design Ambidextrous magazine release Durable alloy magazine well allows for fast & easy magazine changes Includes 1 5-round magazines ThermoDefend Technology - synthetic ergonomic forend grip Picatinny rails integrated into upper receiver and handguard Elevation adjustable cheek rest Soft rubber buttpad 14" picatinny optics rail Flip-up sights included Mounted sling loops Tough FDE finish Manual safety selector switch 7 lbs.