MP 34

Maschinenpistole 34 (MP34)
MP34 SMG with bayonet attached
Type	Submachine gun
Place of origin	Austria
Service history
In service	1930–1970s
Used by	See Users
Wars	Chaco War[1] Spanish Civil War World War II Ecuadorian–Peruvian War Bolivian National Revolution[2] Portuguese Colonial War
Production history
Designer	Louis Stange
Designed	1929
Manufacturer	Waffenfabrik Steyr
Produced	1929–1940
Variants	S1-100, MP30
Specifications
Mass	Loaded 4.48 kg (9.9 lb) Unloaded 4.25 kg (9.4 lb)
Length	850 mm (33.5 in)
Barrel length	200 mm (7.9 in)
Cartridge	9×19mm Luger Parabellum; 9×23 Steyr; 9×25mm Mauser; 7.63×25mm Mauser; .45 ACP; 7.65×21mm Parabellum
Action	open bolt blowback
Rate of fire	~600 rounds/min
Muzzle velocity	~410 m/s (1,345 ft/s)
Effective firing range	150–200 m (490–650 ft : 160–220 yds)
Feed system	20 or 32-round detachable box magazine
Sights	Hooded or open topped front, adjustable rear

The MP34 (Maschinenpistole 34, literally "Machine Pistol 34") is a submachine gun (SMG) that was manufactured by Waffenfabrik Steyr as Steyr-Solothurn S1-100 and used by the Austrian Army and Austrian Gendarmerie and subsequently by units of the German Army and the Waffen SS, in World War II. An exceptionally well-made weapon, it was used by some forces well into the 1970s.