BGMI Submachine Guns are Fast guns. Submachine Guns are great close-range weapons that can kill the enemy very fast because in machine guns you can load more bullets. Fire rate is like Asselt Rifles.
Spray your ammo but beware to not shoot yourself in the foot.
Modern submachine gun using 9mm ammunition.
Modern SMG using delayed blowback system and chambered for .45 ACP ammunition.
Infinite ammo with trench coat on.