The P320 Nitron Full Size is the standard production configuration of the P320 in matte black Nitron finish — the base specification from which all other P320 variants derive. It is the entry point into the P320 platform and among the most broadly distributed SIG pistols in service. Type: Pistol Action: Striker-Fired Caliber: 9mm Luger Capacity: 17 Year introduced: 2014, USA Weight: 29.5 oz Overall length: 8" Status: Active Intended use: duty, carry, law_enforcement