- Crew: up to 2, gunner and assistant
- Effective firing range: 600 m
- Maximum firing range: 1,800 m
- Feed system: detachable box magazine
- Sights: Iron
Machine gun. Introduced 1910, phased out in the 50s. Also used on mounts and as aircraft armament. Starting 1935/1936, the R-22 was supplemented and replaced as an aircraft-mounted weapon by the Gabha G-36 20mm Gun.
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