| Year | April 1943 |
| Vehicle Type | [@type] |
| Origin & Designer | [@designer] |
| Numbers Produced | 830 |
| Crew | 3 (Commander/Loader, Gunner & Driver) |
| Main Armament | 1 x 37mm L/53 M6 Gun |
| Main Armament | [@sponson_traverse] |
| Elevation | -10° to +30° |
| Turret Traverse | 360° (Manual) |
| Gun Traverse | [@gun_traverse] |
| Gun Mount | [@gun_mounts] |
| Maximum Range | [@maximum_range] |
| Armour Penetration | [@armour_penetration] |
| Gun Sight | [@gun_sight] |
| Secondary Armament | 1 x .30 cal M1919A4 Machine Gun (Coaxial) |
| Smoke Discharger | [@smoke_discharger] |
| Ammunition Carried | 50 x 37mm + 2.500 x .30 cal |
| Height | 1.84m |
| Width | 2.25m |
| Length | 3.96m |
| Combat Weight | 7.440 kg |
| Ground Clearance | 0.25m |
| Fording Depth | 0.91m |
| Trench Crossing | 1.68m |
| Obstacle Clearance | 0.46m |
| Climbing Ability | 27° |
| Radio | SCR 510 |
| Armour | Upper Hull Front: 25mm. Lower Hull Front: 13mm. Upper Hull Sides: 13mm. Lower Hull Sides: 10mm. Hull Rear: 19mm. Hull Top: 13mm. Hull Bottom: 10mm. Gun Mantlet: 25mm. Turret Front: 25mm. Turret Sides: 25mm. Turret Rear: 25mm. Turret Top: 19mm. |
| Engine | Lycoming O-435T (Petrol) |
| Transmission | 4 Forward & 1 Reverse |
| Maximum Road Range | 134 miles (217 km) |
| Maximum Cross Country Range | [@maximum_cross_country_range] |
| Maximum Water Range | [@maximum_water_range] |
| Maximum Road Speed | 40 mph (64 kph) |
| Maximum Cross Country Speed | 30 mph (48 kph) |
| Maximum Water Speed | [@maximum_water_speed] |
| Variants | [@variants] |
| Notes | At the request of the British the M22 was designed as a Light Tank for airborne use. Designed by Marmon-Herrington it was armed with a 37mm gun and had thin armour, to reduce the weight even further the gun had no gyro-stabiliser and the turret was manual traversed. It saw action in 1945 along with British units in Operation Varsity, were they were carried in a Hamilcar Gliders. Because the U.S. Airborne never had the capabilities transport it by air it, the M22 was never used by US Forces. |