Ckm wz. 30
Ckm wz. 30 (short for ciężki karabin maszynowy wz. 30; "heavy machine gun 1930 Pattern") is a Polish-made clone of the American Browning M1917 heavy machine gun. Produced with various modifications such as greater caliber, longer barrel and adjustable sighting device, it was an improved although unlicensed copy of its predecessor, and was the standard machine gun of the Polish Army from 1931.
| Ciężki karabin maszynowy wz.30 | |
|---|---|
Machine gun wz. 30 on tripod wz. 30 | |
| Type | Heavy machine gun |
| Place of origin | Second Polish Republic |
| Service history | |
| In service | 1931–1970 |
| Used by | See Users |
| Wars | Spanish Civil War World War II |
| Production history | |
| Designed | 1930 |
| Manufacturer | Państwowa Fabryka Karabinów |
| Produced | 1931–1939 |
| No. built | 10,388+ |
| Variants | wz.1930a wz.1930/39T (cal. 7.65×53mm, prototype for Turkish army) wz.33, wz.36 (aircraft guns) |
| Specifications | |
| Mass |
|
| Length | 1,200 mm (47 in) |
| Barrel length | 720 mm (28 in) |
| Cartridge | 7.92×57mm |
| Caliber | 7.92 mm |
| Action | recoil |
| Rate of fire | 600 round/min |
| Muzzle velocity | 845 m/s (2,770 ft/s) |
| Feed system | 330-round belt |
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