The Mechtech CCU for Glock in 9mm converts Glock 17/19-compatible frames into a full carbine. The 9mm version is the most popular CCU configuration. 16.25-inch barrel, integral Picatinny rail, and a simple blowback action using the existing Glock trigger mechanism. Type: Rifle Action: Semi-Automatic Caliber: 9mm Capacity: 17 Year introduced: 2003, USA Weight: 40 oz Overall length: 26" Status: Active Intended use: Home Defense, Range, Conversion