The .277 Mono 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 Ammunition attachments available in MW3 and MW2.

The .277 Mono is a Universal Attachment, which means it can be used across all Weapons in the game.

.277 Mono Info

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  • How to Unlock the .277 Mono in MW3, MW2, and Warzone:

    Here's how to unlock the .277 Mono attachments in COD Modern Warfare 3, Modern Warfare 2, and COD Warzone 2: Get the Bas-B to Level 26.

    Weapon Blueprints That Equip .277 Mono:

    Here you can find the list of Weapon Blueprints that include the .277 Mono attachment in COD Modern Warfare 3, COD Modern Warfare 2, and COD Warzone:

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