| Year | 1935 |
| Weapon Type | Infantry Mortar |
| Origin & Designer | France-Britain-Norway/Kongsberg |
| Numbers Produced | 150 |
| Crew | 5 |
| Calibre | 81mm |
| Elevation | +45° to +85° |
| Traverse | 12° |
| Cartridge Weight | 3.25 kg |
| Round Weight | [@round_weight] |
| Barrel Length | 1.267mm |
| Overall Length | [@length] |
| Grenade Types | [@grenade_types] |
| Mount | [@mount] |
| Combat Weight | 60.6 kg |
| Operation | [@operation] |
| Cooling System | [@cooling] |
| Sights | [@sights] |
| Feed | [@feed] |
| Practical Rate of Fire | [@practical_rate_of_fire] |
| Maximum Rate of Fire | [@maximum_rate_of_fire] |
| Blank Cartridge | [@blank_cartridge] |
| Muzzle Velocity | 174 m/s |
| Fuel Capacity | [@fuel_capacity] |
| Minimum Range | 100m |
| Effective Range | [@effective_range] |
| Maximum Range | 2.850m |
| Armour Penetration | [@armour_penetration] |
| Bayonet | [@bayonet] |
| Traction | [@traction] |
| Variants | [@variants] |
| Notes | Originally a Stokes-Brandt M.27/31 design and made under license by Kongsberg, and issued at only two per Infantry Battalion. |
