| Year | May 1941 |
| Weapon Type | [@type] |
| Origin & Designer | [@designer] |
| Numbers Produced | 15.637 |
| Crew | Sergeant/Squad Leader) + .30 M1 Rifle. Corporal/Gunner + .45 Pistol. Pvt/Assistant Gunner + .45 Pistol. 2 x Pvts/Loaders + .45 Pistols. 2 x Pvts/Drivers + .30 M1 Rifles (Towing Vehicles). |
| Calibre | 57mm (57x441) |
| Elevation | -5° to +15° |
| Traverse | 90° |
| Breech | Vertical Sliding Block |
| Recoil | Hydrospring |
| Gun Sight | M70H |
| Gun Mount | [@gun_mounts] |
| Carriage | M2: Split Trail |
| Trailers | [@trailers] |
| Gun Shield | 6.35mm |
| Armoured Plate | [@armoured_plate] |
| Barrel Length | 2.84m (L/50) |
| Overall Length | 2.97m |
| Width | [@width] |
| Height | [@height] |
| Weight | 1.110 kg |
| Round Weight | AP (M70) 2.85 kg APC (M86) 3.30 kg |
| Muzzle Velocity | AP 853 m/s. APC 823 m/s. HE 823 m/ |
| Feed | [@feed] |
| Magazine Capacity | [@magazine_capacity] |
| Practical Rate of Fire | [@practical_rate_of_fire] |
| Rate of Fire | [@rate_of_fire] |
| Maximum Rate of Fire | 15 r.p.m. |
| Maximum Ceiling | [@maximum_ceiling] |
| Maximum Ground Range | [@maximum_ground_range] |
| Maximum Range | AP: 9.275m APC: 13.555m HE: 12.670 |
| Armour Penetration | AP (M70): 78mm @ 500m @ 30° 55mm @ |
| Traction | Dodge WC 62 Truck & M2 Half-Track |
| Variants | [@variants] |
| Notes | In 1941 the US army had decided to build their own version of the British designed 6 pdr, this was to supply the British with a lend lease weapon to equip there anti-tank regiments. By this time their own 37mm M3 was found wanting, so the army took an interest adopting the 57mm. With various modifications including a new carriage, the version adopted by the US army was the M1A3 which was light enough to be towed by a 1 ½ Ton truck. In May 1943 the 57mm M1A3 started to replace the 37mm M3 as the standard Anti-Tank Gun but it would be another year until it finally took over. The M1A3 served on all fronts until 1945. |