7.62 ITKK 31 VKT
| 7,62 ItKk/31 VKT | |
|---|---|
7,62 ItKk/31-40 VKT on M/31 cone mount  | |
| Type | Anti-aircraft machine gun | 
| Place of origin | Finland | 
| Service history | |
| In service | 1933–1986 | 
| Used by | Finland | 
| Wars | Winter War Continuation War Lapland War  | 
| Production history | |
| Designer | Aimo Lahti | 
| Designed | 1931 | 
| Manufacturer | VKT (Valtion Kivääritehdas) | 
| Produced | 1933–1944 | 
| No. built | 507 | 
| Variants | 7,62 ItKk/31-40 VKT | 
| Specifications (7,62 ItKk/31 VKT) | |
| Mass | 104 kg (229 lb) with mount 47 kg weapon only | 
| Length | 113 cm (44 in) | 
| Barrel length | 72.3 cm (28.5 in) | 
| Crew | 6 | 
| Shell | 7.62×53mmR | 
| Barrels | 2 | 
| Action | Short-recoil operation | 
| Carriage | M/31 cone mount M/40 tubular tripod mount | 
| Elevation | -10° - 80° | 
| Traverse | 360° | 
| Rate of fire | 2× 900/minute | 
| Muzzle velocity | 800 m/s (2,600 ft/s) | 
| Effective firing range | 600 m (2,000 ft) | 
| Maximum firing range | 1,000 m (3,300 ft) | 
| Feed system | 250-round disintegrating metallic belts | 
| Sights | Ring sight | 
7,62 ITKK 31 VKT or 7,62 mm VKT anti-aircraft machine gun was the primary anti-aircraft machine gun of the Finnish Army during World War II. The weapon was designed by the Finnish gunsmith Aimo Lahti. 507 weapons were produced in two versions, 7,62 ItKk/31 VKT and an improved 7,62 ItKk/31-40 VKT, between 1933 and 1944.