The YK32 pulse pistol is an electrical pulse weapon that was developed by the Yuma Flats Energy Consortium. Though powerful, the YK32 was never considered a practical weapon due to its inefficient energy usage and bulky design.
↑Veronica's dialogue: "Electromagnetic weapon from before the Great War. Experimental. It never saw mass production. But they were building it as a countermeasure to power armor, which they feared the Chinese were developing."