Call of Duty Modern Warfare 3 (MW3)

How to Unlock Lockwood Merciless Attachment

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

How to Unlock Lockwood Merciless

Level Up Guns in MW3 Multiplayer Modes

The Lockwood Merciless attachment can be unlocked by leveling up the following guns in MW3 multiplayer, Zombies, or Warzone:

Weapon Required Level
Modern Warfare 3 -Lockwood Mk2Lockwood Mk2 Raise the Lockwood Mk2 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 Lockwood Merciless attachment, early.

Once you unlock this feature, modify your chosen gun at the Gunsmith and select the Lockwood Merciless from the Comb 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

Lockwood Merciless Compatible Guns

Guns That Can Use the Attachment
Modern Warfare 3 -Lockwood 300Lockwood 300 Modern Warfare 3 -Lockwood Mk2Lockwood Mk2

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 Comb Attachments in MW3

All Related Attachments
5GN Tac-Comb Aim-Assist 406 Bruen TS-30 Comb
Canid Heavy Comb Chisel VX-0 Cheek Riser Cronen GI40 Cheek Riser
Demo Flak Comb EXF Trapper Comb Farseer Cheek Riser
FR Anchor FR Giga FR Ton-618
FSS Ammo Sleeve FSS EL-T Pouch FSS Hardtop Comb
FSS Last Stand Comb FSS LS-3 Comb FT Polycomb
FTAC C11 Riser FTAC H86 Cheek Rest H1 Precision
Honor-Tac Comb Lachmann X-Tra Pouch Lockwood Defender Comb
Lockwood Merciless LTX Eclipse Mack 8 Ontrak Comb
Padded Shell Sleeve Padded Shotgun Comb PD-A40 Sleeve
Recon Comb Reliant IX Comb SAB Comb
Schlager Honor Comb Schlager TTF3 Riser SL-K Trim
TV TacComb Warrant Control Comb Wingman Comb

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