[Source] The BI/a15 Picket Gun was a stationary automated Auto-blaster produced by Atgar to aid in the picket defense of bases poorly staffed or in areas incompatible with biological lifeforms. Equipped with a droid brain of limited capacity, the system was designed to detect any moving targets and, once located, either request permission to fire from a central command post or automatically fire upon it if it did not carry a broadcasting identification badge. The integrated comlink could transmit audio/visual data to a distance of five kilometers.