| Year | 1939 |
| Weapon Type | Heavy Anti-Tank Rifle |
| Origin & Designer | Finland/Lahti |
| Numbers Produced | 1.906 |
| Crew | 2 (Gunner & Loader) |
| Calibre | 20mm (20x138B) |
| Elevation | [@elevation] |
| Traverse | [@gun_traverse] |
| Cartridge Weight | [@cartridge_weight] |
| Round Weight | 2.345gr (152g) |
| Barrel Length | 1.300mm |
| Overall Length | 2.200mm |
| Grenade Types | [@grenade_types] |
| Mount | Bi-Pod |
| Combat Weight | 45.9 kg |
| Operation | Gas/Semi-Automatic |
| Cooling System | [@cooling] |
| Sights | Front Blade & Rear Tangent |
| Feed | 10 Round Box Magazine |
| Practical Rate of Fire | [@practical_rate_of_fire] |
| Maximum Rate of Fire | 15 r.p.m. |
| Blank Cartridge | [@blank_cartridge] |
| Muzzle Velocity | 800 m/s |
| Fuel Capacity | [@fuel_capacity] |
| Minimum Range | [@minimum_range] |
| Effective Range | [@effective_range] |
| Maximum Range | 6.500m |
| Armour Penetration | 30mm @ 30° @ 300m |
| Bayonet | [@bayonet] |
| Traction | [@traction] |
| Variants | [@variants] |
| Notes | [@notes] |