Jimmy stood and fired, using Heart Eye for assistance, with his own revolver. His accuracy was very high, and his shooting speed and quick aiming were incredibly fast.
One shot to the body, one to the head; the three people only managed to reflexively turn around, not even having a chance to fire back at Jimmy before they were all downed, their guns falling to the ground.
The crisis of Mahong being besieged by multiple enemies was resolved. As he fell, he was already firing from his waist. He was using a Glock, and the trigger safety mechanism meant Mahong didn't waste any time unlocking it, firing several shots directly into those lunging at him.