Also aim down sights.Refers to the common alternate method of firing a gun in a first-person shooter (FPS) game, typically activated by the right mouse button. The real-life analogue is when a person raises a rifle up and places the stock just inside the shoulder area, and leans their head down so they can see in a straight line along the top of the rifle, through both of the iron sights or a scope, if equipped. In most games this greatly increases accuracy, but can limit vision, situational awareness, mobility, and require a small amount of time to change the weapon position.