Bersa Thunder 9

Bersa Thunder 9
Bersa Thunder 9
	Bersa Thunder 40 Pro
Type	Semi-automatic pistol
Place of origin	Argentina
Service history
Used by	See Users
Production history
Manufacturer	Bersa
Produced	1994–present
Variants	Thunder Ultra Compact
Specifications
Mass	794 g (28.0 oz) Thunder 9, 40; 695 g (24.5 oz) Thunder 9, 40 Ultra Compact; 766 g (27.0 oz) Thunder 45 Ultra Compact; ; 870 g (31 oz) Thunder 9, 40 (unloaded)
Length	192 mm (7.6 in) Thunder 9, 40; 165 mm (6.5 in) Thunder 9, 40 Ultra Compact; 170 mm (6.7 in) Thunder 45 Ultra Compact;
Barrel length	110 mm (4.3 in) Thunder 9, 40; 89 mm (3.5 in) Thunder 9 and 40 Ultra Compact; 92 mm (3.6 in) Thunder 45 Ultra Compact;
Cartridge	9×19mm Parabellum (Thunder 9 & Thunder 9 Ultra Compact); .40 S&W (Thunder 40 & Thunder 40 Ultra Compact); .45 ACP (Thunder 45 Ultra Compact);
Action	Locked breech, Short recoil operated
Feed system	Detachable box, double stack magazine: 17 + 1 rounds (Thunder 9); 13 + 1 rounds (Thunder 40); 13 + 1 rounds (Thunder 9 Ultra Compact); 10 + 1 rounds (Thunder 40 Ultra Compact); 7 + 1 rounds (Thunder 45 Ultra Compact);

The Thunder 9 is a full-size semi-automatic handgun manufactured by Bersa at the Ramos Mejia production plant in Argentina. It is also sold under the name Firestorm or FS 9.

Derivatives in other calibres include the Thunder 40 and Thunder 45.