9×23mm Largo

[4] Meanwhile, other manufacturers such as Campo-Giro had adopted the 9mm Bergmann–Bayard round and, due to its long history of use in Spanish submachine guns, carbines and pistols, today it is most commonly known as the "9mm Largo".

[4] The Spanish continued using the 9mm Largo in military and police weapons until the 1980s, when it was finally replaced by the 9×19mm Parabellum.

The 9mm Largo and the 9×23mm Steyr have almost identical dimensions, but they can be distinguished by the gilded jacketed bullet on the former, and the Austrian headstamp on the latter.

[citation needed] Anciens Establissements Pieper (AEP)[5] Berthodl Geipel’s Erfurter Maschinenfabrik Astra-Unceta y Cia SA[5] Arrizabalaga

Comissió d'Industries de Guerra (CIG) Destroyer carbine and similar 9mm Largo carbines Fábrica de Armas, A Coruña Fontbernat Llama Parinco Republica Española Star Bonifacio Echeverria[5]

Left to right: 9×23mm Largo, 9×19mm Parabellum , 9×23mm Winchester, and 9×23mm Steyr