The GP100 7-shot variant fits one additional round into the standard GP100 frame by tight cylinder machining. The 4.2-inch barrel is the primary configuration. Seven rounds of .357 Magnum in the proven GP100 frame gives a meaningful capacity advantage for defensive, competition, and service use. Type: Revolver Action: Double-Action Caliber: .357 Magnum Capacity: 7 Year introduced: 2014, USA Weight: 40 oz Overall length: 9.5" Status: Active Intended use: law_enforcement, self_defense, competition, service, Sport/Duty