Compensated Glock 20 Gen 4 with factory-ported barrel and slide — applies the Gen 4 improvements to the 10mm compensated variant. Type: Pistol Action: Semi-Auto Caliber: 10mm Auto Capacity: 15 Year introduced: 2015, Austria Weight: 27.68 oz Overall length: 7.59" Status: Discontinued Intended use: Hunting, Bear Defense