The RIA 20s are basically the assault rifle versions of the RIA 40s.
- RIA 20 DSC: The regular model. Equivalent to the RIA 40.
- RIA 20 Striker: More powerful thermal variant. Equivalent to the RIA T40.
- RIA 20 Para: The lighter, smaller, and full-auto variant. Equivalent to the RIA 45 Para.
The RIA 20 DSC
The RIA 20 Striker
The RIA 20 Para