| Year | June 1938 |
| Weapon Type | [@type] |
| Origin & Designer | [@designer] |
| Numbers Produced | 7.278 |
| Crew | Sergeant/Squad Leader. Corporal/Gunner. Pvt/Assistant Gunner. 2 x Pvts/Loaders. 2 x Pvts/Ammunition Bearers. Pvt/Driver (Truck). |
| Calibre | 37mm (37x223SR) |
| Elevation | -5° to +90° |
| Traverse | 360° |
| Breech | Vertical Sliding Block |
| Recoil | Hydrospring |
| Gun Sight | M2 |
| Gun Mount | [@gun_mounts] |
| Carriage | M3 |
| Trailers | [@trailers] |
| Gun Shield | [@gun_shield] |
| Armoured Plate | [@armoured_plate] |
| Barrel Length | 1.99m (L/54) |
| Overall Length | 2.64m |
| Width | 1.76m |
| Height | 2.04m |
| Weight | Weight in Transit: 2.766 kg Weight in Action: 165 kg |
| Round Weight | AP (M59) 1.44 kg. HE (M54) 1.22 kg. |
| Muzzle Velocity | AP 625 m/s. HE 792 m/s. |
| Feed | [@feed] |
| Magazine Capacity | [@magazine_capacity] |
| Practical Rate of Fire | [@practical_rate_of_fire] |
| Rate of Fire | [@rate_of_fire] |
| Maximum Rate of Fire | Practical: 90 r.p.m. Maximum: 120 r.p.m. |
| Maximum Ceiling | HE 5.760m / AP 3.660m |
| Maximum Ground Range | AP 8.275m / HE 8.290m |
| Maximum Range | [@maximum_range] |
| Armour Penetration | [@armour_penetration] |
| Traction | 2 ½ Ton Truck |
| Variants | [@variants] |
| Notes | Designed by Browning the 37mm anti-aircraft gun was designated the M1 and the improved M1A2 was standardized in 1938. The M1A2 was the main light AA gun issued to mobile units at the start of World War Two, it first saw action in the Bataan campaign, but by 1943 was gradually replaced by the 40mm M1. |