The STI International Spartan is a usa-made single-action pistol chambered in 45 ACP, introduced in 2004. Primary use: Carry, Range/Target. Type: Pistol Action: Single-Action Caliber: 45 ACP Capacity: 7 Year introduced: 2004, USA Weight: 42 oz Overall length: 8.65" Status: Discontinued Intended use: Carry, Range/Target