| 7.7 cm Infanteriegeschütz L/20 | |
| Origin: | German Empire |
| Type: | Infantry gun |
| Is Artillery: | yes |
| Service: | 1916–1918 |
| Used By: | German Empire |
| Wars: | World War I |
| Designer: | Krupp |
| Manufacturer: | Krupp |
| Weight: | 815kg (1,797lb) |
| Part Length: | 1.54m (05.05feet) L/20 |
| Cartridge: | 6.85kg (15.1lb) |
| Caliber: | 77 mm (3.03 in) |
| Velocity: | approx. 400 m/s (1,312 ft/s) |
| Max Range: | 5000m (16,000feet) (HE shell) |
| Breech: | Horizontal sliding-wedge |
| Recoil: | Hydro-pneumatic |
| Carriage: | Box trail |
| Elevation: | -7° to +30° |
| Traverse: | 5.5° |
The 7.7 cm Infanteriegeschütz L/20 was an infantry gun used by Germany in World War I. It was designed by Krupp to rectify the shortcomings of the 7.62 cm Infanteriegeschütz L/16.5.
Krupp mounted a shortened 7.7 cm Feldkanone 96 n.A on one of their mountain howitzer carriages. It fired the full range of ammunition of the FK 96 n.A., but generally only with a reduced charge, although it retained the capacity to fire the old full-power charges that gave a maximum muzzle velocity of 435 m/s (1427 ft/s). It also used a new full-power anti-tank round. Generally, it broke down into two loads for transport, although it could break down into a maximum of eight loads.
While generally liked by the troops, it was thought to be too heavy and slow to break down and reassemble. The German search for a better infantry gun that maximized the use of existing components continued with Krupp's 7.7 cm Infanteriegeschütz L/27.