Polarizer

The plarizer was a unique weapon created by Jeigh Esse out of a BlasTech EG-7. It was able to emit high-energy charges for several meters when fired. This weapon gave Jeigh great job satisfaction when she used it properly.

Behind the scenes
The polarizer was created by Chris Cowdrill, a Star Wars fan, for the backstory of their Jeigh Esse entry in the Design An Alien contest held in the Star Wars Galaxy Magazines and as such, exactly how canon the weapon is remains unclear.