| Year | May 1940 |
| Vehicle Type | [@type] |
| Origin & Designer | [@designer] |
| Numbers Produced | 375 |
| Crew | 4 (Commander, Gunner, Driver & Assistant Driver) |
| Main Armament | 1 x 37mm L/53 M5 Gun |
| Main Armament | [@sponson_traverse] |
| Elevation | -6° to +19° |
| 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 (AA Mount). 1 x .30 cal M1919A4 Machine Gun (Coaxial). 2 x .30 cal M1919A4 Machine Gun (Bow Sponsons). |
| Smoke Discharger | [@smoke_discharger] |
| Ammunition Carried | 103 x 37mm & 8.470 x .30 cal |
| Height | 2.64m |
| Width | 2.47m |
| Length | 4.32m |
| Combat Weight | 11.600 kg |
| Ground Clearance | 0.41m |
| Fording Depth | 1.10m |
| Trench Crossing | 1.52m |
| Obstacle Clearance | 0.61m |
| Climbing Ability | 26° |
| Radio | SCR 210 |
| Armour | Upper Hull Front: 16mm. Lower Hull Front: 25mm. Upper Hull Sides: 25mm. Lower Hull Sides: 25mm. Hull Rear: 25mm. Hull Top: 13mm. Hull Bottom: 9.53mm. Gun Mantlet: 25mm. Turret Front: 25mm. Turret Sides: 25mm. Turret Rear: 25mm. Turret Top: 6.4mm. |
| Engine | Continental W-670-9A (Petrol) |
| Transmission | 5 Forward & 1 Reverse |
| Maximum Road Range | 68 miles (209 km) |
| Maximum Cross Country Range | 68 miles (110 km) |
| Maximum Water Range | [@maximum_water_range] |
| Maximum Road Speed | 36 mph (58 kph) |
| Maximum Cross Country Speed | 18 mph (29 kph) |
| Maximum Water Speed | [@maximum_water_speed] |
| Variants | [@variants] |
| Notes | M2A4 was the first model to incorporate a 37mm Gun, with the same hull as the M2A3 it also had an improved engine and armour. It saw action with the 1st US Tank Battalion in the battles on bloody ridge during the Guadalcanal campaign in 1942. |