The CS SG-990 is a weapon in Just Cause Unity.


This assault rifle was designed in conjunction with the Swiss Military for defensive purposes. It is now the universally accepted "Baby's first assault rifle."

It is based on the SIG SG 550.


It does a great amount of damage for the price, it also has a good fire rate.

It is useful in near any situation, it is advised to use more expensive rifles such as the STN T-12 Constrictor, if affordable.


  • It's made by the fictional company Capstone.