Twin 57mm automatic AA gun
This twin 57mm automatic AA gun, which is evidently without a formal designation in the open literature, is a DPRK-produced system mounted on a 4 wheeled towed carriage.
Specifications
Tactical Antiair (AA) Range 4,000 m w/o radar, 6,000 w/radar Rate of Fire 105-120 rds/min per barrel Azimuth Unlimited Elevation -4 to 87 degrees Fire Control Optical mechanical computing sight Ammunition HE-T (57x348mm) Self Destruct Time 13 to 17 secs Self Destruct Range 6,000-7,200 m Sources and Resources