STI Open division 2011 with True Bull Barrel system. No bushing, compensator built into the guide rod, and optics-ready. One of the most accurate Open pistols produced by STI. Type: Pistol Action: Semi-Automatic Caliber: 9mm Capacity: 20 Year introduced: 2003, USA Weight: 44 oz Overall length: 8.75" Status: Discontinued Intended use: Competition, USPSA