Kulsprutegevär m/40
              < Kulsprutegevär m 
 
            
          | Kulsprutegevär m/1940 | |
|---|---|
| Type | Automatic rifle | 
| Place of origin | Sweden | 
| Service history | |
| Used by | See Users | 
| Wars | World War II | 
| Production history | |
| Manufacturer | Svenska Automatvapen AB | 
| Variants | MG35/36 (German) | 
| Specifications | |
| Mass | 8.5 kg (18.7 lb) (Kg m/40) 10 kg (22.0 lb) (MG-35/36)  | 
| Length | 1,257 mm (49.5 in) (Kg m/40) 1,280 mm (50 in) (MG-35/36)  | 
| Barrel length | 685 mm (27.0 in) (Kg m/40) 500 mm (20 in) (MG-35/36)  | 
| Cartridge | 6.5×55mm Swedish (Kg m/40) 7.92×57mm Mauser (MG-35/36)  | 
| Action | Long-stroke piston, open bolt | 
| Rate of fire | 480 rpm (Kg m/40) 500 rpm (MG-35/36)  | 
| Muzzle velocity | 745 m/s (2,440 ft/s) | 
| Feed system | 20 round BAR magazine (Swedish pattern) 25 round "Dreyse" magazine (MG35/36A)  | 
| Sights | Iron | 
The Kulsprutegevär m/40, Kg m/40 (Machine rifle model 40) is an automatic rifle used by the Swedish Army during the 1940s.
The rifle was negatively referred to as "galopperande järnsängen" (the "galloping iron bed") by soldiers owing to its recoil. It primarily saw use with the Swedish Home Guard during World War II but was withdrawn from service and replaced with the older Swedish version of the M1918 Browning Automatic Rifle known as the Kg m/21 afterward.