The P226 ExChange Package is a factory upgrade program rather than a stand-alone production model, allowing owners to send in their standard P226 for a full Elite-specification upgrade including SRT, front serrations, beavertail, and new sights. SIG offered this directly as a factory service. The resulting pistols are stamped with exchange program markings and represent some of the most refined examples of the classic P226. Type: Semi-Auto Pistol Action: DA/SA Caliber: 9mm Capacity: 15 Year introduced: 2007, Germany/USA Weight: 34 oz Overall length: 7.7" Status: Discontinued Intended use: duty, premium