The P320 X-Series RXP (Romeo X Pro) ships with the Romeo1 Pro optic factory-installed on the optic-ready X-Series slide, delivering an improved optic package over the original RX series. The Romeo1 Pro features an improved battery compartment accessible without removing the optic, a significant duty-carry advantage. Type: Semi-Automatic Pistol Action: Striker-Fired Caliber: 9mm Luger Capacity: 17 Year introduced: 2019, USA Weight: 29.8 oz Overall length: 8" Status: Active Intended use: duty, law_enforcement