| Year | 1942 |
| Weapon Type | Sub-Machine Gun |
| Origin & Designer | Japan/Arisaka |
| Numbers Produced | 7.500 |
| Crew | [@crew] |
| Calibre | 8mm (8x22) |
| Elevation | [@elevation] |
| Traverse | [@gun_traverse] |
| Cartridge Weight | [@cartridge_weight] |
| Round Weight | 102gr (7.0g) |
| Barrel Length | 240mm |
| Overall Length | 900mm |
| Grenade Types | [@grenade_types] |
| Mount | [@mount] |
| Combat Weight | 3.9 kg |
| Operation | Blowback Fully Automatic |
| Cooling System | Air |
| Sights | Front Blade & Rear Peep |
| Feed | 20 Round Magazine |
| Practical Rate of Fire | 120 r.p.m. |
| Maximum Rate of Fire | 450 r.p.m. |
| Blank Cartridge | [@blank_cartridge] |
| Muzzle Velocity | 450 m/s |
| Fuel Capacity | [@fuel_capacity] |
| Minimum Range | [@minimum_range] |
| Effective Range | 50m |
| Maximum Range | 150m |
| Armour Penetration | [@armour_penetration] |
| Bayonet | Type 30 Bayonet |
| Traction | [@traction] |
| Variants | [@variants] |
| Notes | The type 100 sub-machine gun was the only Japanese weapon of its class to be issued to the military. Another product of the Nambu family and has some similarities to the Bergmann. It was initially issued to Japanese Marines and was regarded as a reliable close quarter weapon. The real drawback was over production, as the Japanese regarded sub-machine guns as low priority. It was issued mainly to elite units and only small numbers were sent to the infantry. |