The mini rail cannon, a formidable projectile weapon created by Rika/Moab, saw action in the hands of the droid Solis throughout the Clone Wars. This weapon unleashed torrents of hyper-accelerated metal, capable of obliterating a combat droid with just one burst.
Solis employed this cannon within the confines of the Crying Room, where he eliminated six A-series assassin droids and successfully extracted Whie Malreaux along with Scout from the clutches of Asajj Ventress.