Fourth-generation USPSA Production workhorse with MOS optics mounting system. 5.31-inch barrel, adjustable sights, and dual recoil spring assembly. Predecessor to the Gen5 MOS. Type: Pistol Action: Semi-Automatic Caliber: 9mm Capacity: 17 Year introduced: 2015, Austria Weight: 22.9 oz Overall length: 8.74" Status: Discontinued Intended use: Competition, USPSA