Despite the Thunder 380 branding, the Pro series is chambered in 9mm Luger, not .380 ACP. Features an alloy frame, improved trigger geometry, extended magazine, and a more refined finish compared to standard Thunder models. The naming convention is a Bersa market quirk — the Pro designation indicates the 9mm upgrade, not a .380 refinement. Type: Pistol Action: Semi-Automatic Caliber: 9mm Capacity: 17 Year introduced: 2012, Argentina Weight: 26.3 oz Overall length: 7.3" Status: Active Intended use: service, home_defense, sport