The 870 Express Magnum is chambered for 3-inch 12 gauge shells and is one of the most versatile pump shotguns produced. Handles standard 2-3/4-inch field loads and 3-inch waterfowl loads interchangeably. Type: Shotgun Action: Pump-Action Caliber: 12 Gauge Capacity: 5 Year introduced: 1955, USA Weight: 80 oz Overall length: 47" Status: Active Intended use: Hunting