Type 4 20 mm Twin AA Machine Cannon
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Type 4 20 mm Twin AA Machine Cannon was a Japanese Anti-aircraft gun. It consisted of two Type 98 20 mm guns. It was introduced in 1944 and approximately 500 guns were produced.
- Caliber: 20 mm
- Barrel length: 1.4 m (L70)
- Muzzle velocity: 950 m/s
- Range: 5,500 mm
- Altitude: 3,500 m
- Rate of fire: 600 round/min
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