MP40 Machine Pistol 9mm

01. Original name MP40 Machine Pistol 9mm  
02. Other official names Maschinenpistole 40  
03. Popular names Schmeisser  
04. Chamberings 9×19mm Parabellum  
05. Designed by Heinrich Vollmer & Berthold Geipel  
06. Design date 1940  
07. In service date(s) 1940–1945 (Nazi Germany)  
08. Adopted by Nazi Germany  
09. Production quantities 1,100,000 (estimated) in all variants. Produced by: Steyr-Mannlicher; Erma Werke; Haenel  
10. Mechanism Straight blowback, open bolt  
11. Weight 3.97 kg (8.75 lb)  
12. Mountings Shoulder mounted and hand held machine pistol  
13. Practicality in action The mp40 stood the test of time. In use around the world in service until 1990. A common problem was that the magazine was also sometimes misused as a handhold This could cause the weapon to malfunction when hand pressure on the magazine body caused the magazine lips to move out of the line of feed, since the magazine well did not keep the magazine firmly locked.German soldiers were trained to grasp either the handhold on the underside of the weapon or the magazine housing with the supporting hand to avoid feed malfunctions.  
14. Comments / Other information Rate of fire. 500–550 rounds/min Muzzle velocity. 400 m/s (1,312 ft/s) Effective firing range. 100–200 m 32-round detachable box magazine, 64-round with dual magazines