The FSS Ammo Sleeve is a weapon attachment featured in Call of Duty: Modern Warfare 3 (2023), Modern Warfare 2 (2022), and Call of Duty: Warzone.

It is one of the Comb attachments available in MW3 and MW2.

The FSS Ammo Sleeve is a Weapons Platform Specific Attachment, which means it is only usable within its specific Weapons Platform.

  • Pros Ammo Reserve
  • Cons Aim Down Sight Speed
FSS Ammo Sleeve
A shotgun shell sleeve made by First Signal Solutions.

FSS Ammo Sleeve Info

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  • How to Unlock the FSS Ammo Sleeve in MW3, MW2, and Warzone:

    Here's how to unlock the FSS Ammo Sleeve attachments in COD Modern Warfare 3, Modern Warfare 2, and COD Warzone 2: Get the Expedite 12 to Level 13.

    Weapon Blueprints That Equip FSS Ammo Sleeve:

    Here you can find the list of Weapon Blueprints that include the FSS Ammo Sleeve attachment in COD Modern Warfare 3, COD Modern Warfare 2, and COD Warzone:

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