| 37-mm trench gun M1915 | |
| Origin: | Russian Empire |
| Type: | Infantry support gun |
| Is Artillery: | yes |
| Wars: | World War I World War II |
| Weight: | 180.1 kg (397 lbs) |
| Length: | 1.6m (05.2feet) |
| Part Length: | 70cm (30inches) L/19[1] |
| Width: | 100cm (00inches) |
| Height: | 100cm (00inches) |
| Cartridge: | Fixed QF 37 x 94 mm R HE, APHE, APHE-T, AP, AP-T, Canister[2] |
| Cartridge Weight: | 0.512sigfig=1NaNsigfig=1 |
| Caliber: | 37 mm (1.45 in) |
| Velocity: | 442m/s |
| Max Range: | 3.20NaN0 |
| Recoil: | none |
| Carriage: | Box-trail |
| Elevation: | -5° to +15° |
| Traverse: | 90° |
37-mm trench gun M1915 (Russian: Траншейная 37-мм пушка обр. 1915 года) was a Russian battalion gun employed in World War I.
With World War I switching into a trench warfare phase late in 1914, a need for a highly mobile artillery system to be used against enemy machine gun emplacements and other strongpoints became apparent. In 1915 colonel M. F. Rosenberg, a member of the Artillery Committee, developed such a weapon. The gun was compact enough to fit into machine gun emplacements. It weighed only about 180 kg and could be dismantled into three pieces - barrel (about 74 kg), carriage (82 kg) and wheels (25 kg), making it easy to move around. To protect the crew from enemy fire, the gun was equipped with a shield 6 or 8 mm thick. The weapon was sufficiently accurate at ranges of up to roughly 1 mile or about 1.6 km—this was earlier set out as 1,000-1,200 paces, and a pace is normally the height of the person walking, so this is not a uniform measure.