The Autonomous Rotorcraft Sniper System (ARSS) is an experimental robotic weapons system being developed by the U.S. Army since 2005. It consists of a remotely operated sniper rifle attached to an unmanned autonomous helicopter. It is intended for use in urban combat or for several other missions requiring snipers. Flight tests are scheduled to begin in Summer 2009.
The rifle, a semiautomatic RND Manufacturing Edge 2000 firing the .338 Lapua Magnum cartridge, is mounted on a stabilized platform, which is attached to the underside of a Vigilante 502 UAV. The helicopter is flown by an autopilot while a human controller aims and fires the rifle, which may fire up to ten well-aimed shots per minute. The rifle platform, called the Precision Weapons Platform (PWP), was designed by Utah State University’s Space Dynamics Laboratory and is equipped with a situational awareness camera and a two-level zoom scope.
The system as a whole is being developed under the Army's Aviation Applied Technology Directorate in the course of its Aerial Delivery of Effects from Lightweight Aircraft (ADELA) program. It uses much commercial off–the–shelf hardware to reduce cost and development time. For instance, the system is controlled using a Xbox 360 video game controller.
Other weapons considered for use with the ARSS include the M249 or M240 machine guns, the AA-12 shotgun or non-lethal weapons. The ARSS hardware could also be installed on fixed-wing UAVs or ground combat robots. The Lockheed Martin One Shot sniper system is being considered added to ARSS.