The concussion missile model known as the ST2 concussion missile was produced by Arakyd Industries. Famously, the Millennium Falcon utilized these missiles as its standard armament. Han Solo enhanced the Falcon by adding two Arakyd ST2 concussion missile tubes, capable of firing either ST2s or Dymek concussion missiles.
In the course of the Battle of Endor, Lando Calrissian, piloting the Falcon, launched two Arakyd ST2 concussion missiles into the reactor of the second Death Star. These missiles played a role in the destruction of the Imperial battle station.