e/Type 4 20 mm Twin AA Machine Cannon

Information
has gloss	eng: 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
lexicalization	eng: Type 4 20 mm Twin AA Machine Cannon
instance of	c/Anti-aircraft guns of Japan