- designed by Václav Holek in 1923
- manufacturer was Zbrojovka Praga
- only 20 from the ordered 40 were delivered
- barrel length: 616 mm (incl. flame arrestor: 689 mm)
- intentional length: 668 mm
- overall length: 1029 mm
- uses 7.92 mm Mauser with a 20 round detachable belt-feed magazine
- weight (without cartridge belt box): 11.48 kg
