Cassus Fett's heavy blaster pistol was a custom model of a Mandalorian heavy blaster that saw use prior to the Jedi Civil War.
This adaptable blaster was used by the notorious Cassus Fett, recognizable due to its distinctive wooden grip and black metal base. Fett wielded the weapon at the Battle of Jaga's Cluster, when he killed the Captain of a Republic frigate—an action that earned Cassus Fett infamy across the galaxy. Although Cassus was rarely seen without it, the blaster was lost after Fett's death. It eventually was acquired by B'ree, a merchant on Korriban.