[Source] The FEX-M3 nerve gas grenade was an infantry hand grenade that contained the deadly FEX-M3 nerve gas. Manufactured by the Czerka Arms corporation, the grenade was one of Czerka's several types of chemical load grenades filled with various chemical payloads. Production of FEX-M3 nerve gas grenades was banned by the Galactic Senate around the start of the Clone Wars; however, one Galactic Republic factory on the planet Belgaroth secretly produced a large shipment of grenades for the Confederacy of Independent Systems during the conflict. When intelligence of the factory's possible ties to their enemy reached the Republic, a four-man clone trooper team was dispatched to investigate. During the course of the mission, three clone troopers were killed by a native droidbreaker creature,