The 4" Frame S-1 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 4" Frame S-1 is a Weapons Platform Specific Attachment, which means it is only usable within its specific Weapons Platform.
4" Frame S-1 Info
- Release Season 4
- Unlocked Via ISO 45
How to Unlock the 4" Frame S-1 in MW2 and Warzone 2:
Here's how to unlock the 4" Frame S-1 attachments in COD Modern Warfare 2 and COD Warzone 2: .
Weapon Blueprints That Equip 4" Frame S-1:
Here you can find the list of Weapon Blueprints that include the 4" Frame S-1 attachment in COD Modern Warfare 2 and COD Warzone 2: