Developed in Weyland-Yutani labs, the WY-1000 SDR is an efficient weapon when used against alien species of all types. When fired at a human, the damage is moderate but manageable. When employed against a Xenomorph, however, the sonic disruptions of the rifle cause the internal systems of the creature to rupture. It also has a similar effect upon Yautja physiology, causing organs and muscles to explode.