A fully automatic firearm that fires rifle-caliber rounds; used in military and action contexts.
敵の機関銃が激しく火を噴いた。
The enemy machine gun fired fiercely.
その戦車には機関銃が搭載されている。
The tank is equipped with a machine gun.
The soldiers fired a machine gun from atop the hill.
The soldier had his machine gun ready in the trench.
The enemy opened fire on our men with a machine gun.