The Walther PDP Full Size OR with 4.5-inch barrel adds the factory optic plate system to the full-size 18-round variant. The OR plate system accepts multiple red dot footprints without adapter plates. Co-witnessed suppressor-height tritium sights are included. Combines the PDP's class-leading factory trigger with full-size capacity and factory optic readiness in the 4.5-inch barrel configuration. Type: Pistol Action: Striker-Fired Caliber: 9mm Capacity: 18 Year introduced: 2022, Germany Weight: 26.1 oz Overall length: 8.1" Status: Active Intended use: duty, competition