The Scorpion EVO 3 S1 is a semi-auto pistol variant of CZ's military submachine gun, importing as a pistol with a brace-compatible buffer tube. 9mm with a polymer receiver, folding brace, and aggressive ergonomics. Type: Semi-Auto Pistol Action: Striker-Fired Caliber: 9mm Luger Capacity: 20 Year introduced: 2015, Czech Republic Weight: 5 oz Overall length: 16.3" Status: Active Intended use: home_defense, range, competition