
The Series 4-MR is a weapon attachment featured in Call of Duty: Modern Warfare 2 (2022) and Call of Duty: Warzone 2.
It is one of the Barrel attachments available in MW2.
The Series 4-MR is a Weapons Platform Specific Attachment, which means it is only usable within its specific Weapons Platform.
Series 4-MR Info
- Attachment Type
- Release Season 2
- Unlocked Via
ISO Hemlock
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How to Unlock the Series 4-MR in MW2 and Warzone 2:
Here's how to unlock the Series 4-MR attachments in COD Modern Warfare 2 and COD Warzone 2: .
Weapon Blueprints That Equip Series 4-MR:
Here you can find the list of Weapon Blueprints that include the Series 4-MR attachment in COD Modern Warfare 2 and COD Warzone 2: