Long-slide Glock 20 variant produced briefly in the early 1990s with a 6-inch barrel — the predecessor concept to the later G40 MOS platform. Type: Pistol Action: Semi-Auto Caliber: 10mm Auto Capacity: 15 Year introduced: 1993, Austria Weight: 32.12 oz Overall length: 9.21" Status: Discontinued Intended use: Hunting, Competition