Twin 57mm Self-Propelled AA Gun
This twin 57mm automatic AA gun, which is evidently without a formal designation in the open literature, [though possibly designated M-1985] is a DPRK-produced system mounted on a modified YW 531 APC. It is generally similar to, but distinct from, the Russian ZSU-57-2 system.
Specifications
Tactical Antiair (AA) Range 4,000 m Rate of Fire 150-180 rds/min per barrel Azimuth Unlimited Elevation 0 to 87 degrees Fire Control Optical mechanical computing sight Ammunition HEI-T (57x348mm) Self Destruct Time 13 to 17 secs Self Destruct Range 6,000-7,200 m Sources and Resources