RIB400 Attachment Guide

The RIB400 attachment in Call of Duty: Modern Warfare 2 and Warzone 2 is Weapons Platform Specific. In other words, this weapon stock is exclusive to a particular family of weapons.

How to Get the RIB400

To unlock the RIB400 attachment in Call of Duty: Warzone 2.0, you need to upgrade the FJX Imperium to Level 4.