Call of Duty Modern Warfare 3 (MW3)

How to Unlock S40-H Grip Attachment

The S40-H Grip is a gun attachment found under the Underbarrels attachment category of Modern Warfare 3 (MW3). Check out our guide to learn how to unlock the S40-H Grip and find out all compatible guns for this attachment!

How to Unlock S40-H Grip

Level Up Guns in MW3 Multiplayer Modes

The S40-H Grip attachment can be unlocked by leveling up the following guns in MW3 multiplayer, Zombies, or Warzone:

Weapon Required Level
Modern Warfare 3 -FTAC SiegeFTAC Siege Raise the FTAC Siege to Level 16

Complete the Attachment's Armory Unlock Challenge

Alternatively, players who have reached Account Level 25 can opt to complete Armory Unlock challenges to get the S40-H Grip attachment, early.

Once you unlock this feature, modify your chosen gun at the Gunsmith and select the S40-H Grip from the Underbarrel attachment slot of your weapon. This should activate its Armory Unlock contract, allowing you to complete Daily and Bonus Challenges to get it earlier.

Armory Unlock Challenges

S40-H Grip Compatible Guns

Guns That Can Use the Attachment
Modern Warfare 3 -FTAC SiegeFTAC Siege

Modern Warfare 3 (MW3) Related Guides

Modern Warfare 3 - Attachments

List of All Attachments

Attachment Types in MW3

Attachments By Type
Barrel Stock Ammunition Muzzle
Rear Grip Optic Underbarrel Magazine
Receiver Laser Comb Trigger Action
Guard Bolt Arm Rail
Carry Handle Lever Loader Wire
Conversion Kit

Best Underbarrels to Equip in MW3

Best MW3 Underbarrels
This list is under construction!

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