The "Thumper" under-barrel grenade launcher was an under-barrel grenade launcher manufactured by Czerka Arms and sold for
2000. The weapon attachment was available in the period following the Battle of Yavin during the Galactic Civil War between the Galactic Empire and the Alliance to Restore the Republic.
Behind the scenes[]
The name may be a reference to the M79 grenade launcher, which American soldiers nicknamed the "Thumper" for its distinctive report.