Villar Perosa aircraft submachine gun
| Villar Perosa | |
|---|---|
| Type | Light machine gun Aircraft machine gun |
| Place of origin | Italy |
| Service history | |
| Used by | See users |
| Wars | World War I |
| Production history | |
| Designed | 1914 |
| Specifications | |
| Mass | 6.5 kg (14 lb) |
| Length | 533 mm (21.0 in) |
| Barrel length | 320 mm (13 in) |
| Cartridge | Glisenti M.915 Per Mitragliatrici, 9x23mm Steyr (Sturm-Pistole), .455 Webley (Trials only) |
| Barrels | 2, side by side |
| Action | Delayed blowback |
| Rate of fire | 1200-1500 rounds/min per barrel, 2400-3000 total |
| Feed system | 2 25-round box magazines |
The Pistola Mitragliatrice Fiat Mod. 1915, commonly nicknamed the Villar Perosa, was an Italian portable automatic weapon developed during World War I by the Officine di Villar Perosa.
As it was designed to use 9×19mm ammunition, it is said to be the first submachine gun, although not a true submachine gun by modern standards. Due to its extremely high rate of fire, it was nicknamed Pernacchia (literally raspberry, in that context meaning something like fart gun) by its operators.