Type 4 20 mm Twin AA Machine Cannon

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 m
• Altitude: 3,500 m
• Rate of fire: 600 round/min