A modular JG-840 with attachments for a single upgrade. The JG-940 is exactly the same as the JG-840 but has a slot for a single weapon upgrade, so for specifics on the use / stats of this gun you can check the JG-840 page.
Unlocking the JG-940
Criminals - Level 13 with G-Kings
Enforcers - Level 13 with Praetorians