The original P365 Nitron — SIG's micro-compact striker-fired 9mm that redefined the sub-compact carry category with its 10+1 capacity in a package smaller than most 6-round guns. Type: Pistol Action: Semi-Automatic Caliber: 9mm Luger Capacity: 10 Year introduced: 2018, USA Weight: 17.8 oz Overall length: 5.8" Status: Active Intended use: Concealed Carry, Personal Defense