Call of Duty Modern Warfare 3 (MW3) Walkthrough & Guides Wiki

Call of Duty Modern Warfare 3 (MW3)

How to Unlock XRK Heavy V4 Attachment

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The XRK Heavy V4 is a gun attachment found under the Trigger Actions attachment category of Modern Warfare 3 (MW3). Check out our guide to learn how to unlock the XRK Heavy V4 and find out all compatible guns for this attachment!

List of Contents

How to Unlock XRK Heavy V4

Level Up Guns in MW3 Multiplayer Modes

The XRK Heavy V4 attachment can be unlocked by leveling up the following guns in MW3 multiplayer, Zombies, or Warzone:

Weapon Required Level
Modern Warfare 3 -RenettiRenetti Raise the Renetti to Level 7

Complete the Attachment's Armory Unlock Challenge

Modern Warfare 3 - Armory Unlock Challenge for Attachments

Alternatively, players who have reached Account Level 25 can opt to complete Armory Unlock challenges to get the XRK Heavy V4 attachment, early.

Once you unlock this feature, modify your chosen gun at the Gunsmith and select the XRK Heavy V4 from the Trigger Action 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

XRK Heavy V4 Compatible Guns

Guns That Can Use the Attachment
Modern Warfare 3 -RenettiRenetti

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

All Trigger Action Attachments in MW3

All Related Attachments
Ali's Regret Basilisk HT-7 Bruen Express
Bruen MG80 Trigger Bruen MG89 Trigger Bryson HTA
Bryson Match Grade Dex8 Trigger Maelstrom Dual Trigger
Odin's Judgement P890 Double Action Precision Trigger
Rapid 30 Trigger SA Competition Trigger SA Fifty Trigger
SA Hare Trigger Ullr's Fury XRK Heavy V3
XRK Heavy V4 XRK Lighting Fire XRK Lightning Fire
XRK TR9 Trigger XRK V21 Heavy Match XRK V6 Match

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