The 20-gauge SX4 Field delivers the inertia-operated semi-automatic experience in a trim, lightweight package. At 6 lbs, it is one of the lightest semi-automatic shotguns available in 20 gauge. Uses the same Invector-Plus choke system as Winchester's 12-gauge guns. Type: Shotgun Action: Semi-Automatic Caliber: 20 Gauge Capacity: 4 Year introduced: 2017, Belgium Weight: 160 oz Overall length: 46" Status: Active Intended use: Hunting, Upland, Field