| Year | 1941 |
| Weapon Type | Heavy Mortar |
| Origin & Designer | Sweden/Tampela |
| Numbers Produced | 596 |
| Crew | 8 |
| Calibre | 120mm |
| Elevation | +45° to +85° |
| Traverse | 35° |
| Cartridge Weight | [@cartridge_weight] |
| Round Weight | 12.5 kg |
| Barrel Length | 1.890mm |
| Overall Length | [@length] |
| Grenade Types | [@grenade_types] |
| Mount | [@mount] |
| Combat Weight | Weight in Traction: 625 kg Weight in Action: 269 kg |
| Operation | [@operation] |
| Cooling System | [@cooling] |
| Sights | [@sights] |
| Feed | [@feed] |
| Practical Rate of Fire | 10 r.p.m. |
| Maximum Rate of Fire | 18 r.p.m. |
| Blank Cartridge | [@blank_cartridge] |
| Muzzle Velocity | 290 m/s |
| Fuel Capacity | [@fuel_capacity] |
| Minimum Range | 600m |
| Effective Range | [@effective_range] |
| Maximum Range | 5.300m |
| Armour Penetration | [@armour_penetration] |
| Bayonet | [@bayonet] |
| Traction | Twin Wheeled Carriage |
| Variants | [@variants] |
| Notes | [@notes] |