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Call of Duty Modern Warfare 3 (MW3)
How to Unlock ZLR Reinforced Lockbolt Attachment
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The ZLR Reinforced Lockbolt is a gun attachment found under the Bolts attachment category of Modern Warfare 3 (MW3). Check out our guide to learn how to unlock the ZLR Reinforced Lockbolt and find out all compatible guns for this attachment!
List of Contents
How to Unlock ZLR Reinforced Lockbolt
Level Up Guns in MW3 Multiplayer Modes
The ZLR Reinforced Lockbolt attachment can be unlocked by leveling up the following guns in MW3 multiplayer, Zombies, or Warzone:
| Weapon | Required Level |
|---|---|
 LA-B 330
|
Raise the LA-B 330 to Level 19 |
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 ZLR Reinforced Lockbolt attachment, early.
Once you unlock this feature, modify your chosen gun at the Gunsmith and select the ZLR Reinforced Lockbolt from the Bolt attachment slot of your weapon. This should activate its Armory Unlock contract, allowing you to complete Daily and Bonus Challenges to get it earlier.
ZLR Reinforced Lockbolt Compatible Guns
| Guns That Can Use the Attachment | ||
|---|---|---|
 SP-R 208
|
 SA-B 50
|
LA-B 330
|
 SP-X 80
|
||
Modern Warfare 3 (MW3) Related Guides
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 Bolt Attachments in MW3
| All Related Attachments | ||
|---|---|---|
| Blastcap 20" Bolts | Brightblaze 20" Bolts | Cronen B85 Bolt |
| Cronen Smooth Bolt | Dashbolt 60 | Ephemeral Quickbolt |
| Expedite HZ3 Bolt | Expedite L-Bolt | Express Light Bolt |
| FJX Blast | FJX H-Bolt | FSS ST87 Bolt |
| FTac Caustic 20" Bolts | Hardbolt 2.1 | Quick Bolt |
| Requiem-9 Heavy Bolt | SA-M Longdraw | SA-M Quickbolt |
| Smooth Slide Heavy Bolt | Stalker Heavy Bolt | Titanic Heavy Bolt |
| XRK Stalker Light Bolt | ZLR Reinforced Lockbolt | |
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Call of Duty Modern Warfare 3 (MW3) Walkthrough & Guides Wiki
How to Unlock ZLR Reinforced Lockbolt Attachment
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