Henry Big Boy Silver in .45 Colt with nickel-plated receiver and 20-inch octagon barrel. The Silver finish is a premium aesthetic option on the Big Boy platform. Type: Rifle Action: Lever-Action Caliber: .45 Colt Capacity: 10 Year introduced: 2012, USA Weight: 43 oz Overall length: 38.5" Status: Active Intended use: Cowboy Action, Recreation, Display