SO-90 Factory Stock Attachment Guide

SO-90 Factory Stock how to unlock

The SO-90 Factory Stock 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 SO-90 Factory Stock

To unlock the SO-90 Factory Stock attachment in Call of Duty: Warzone 2.0, you need to upgrade the EBR-14 to Level 9.