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The .50 Cal Armor Piercing is a gun attachment found under the Ammunitions attachment category of Modern Warfare 3 (MW3). Check out our guide to learn how to unlock the .50 Cal Armor Piercing and find out all compatible guns for this attachment!
List of Contents
The .50 Cal Armor Piercing attachment can be unlocked by leveling up the following guns in MW3 multiplayer, Zombies, or Warzone:
| Weapon | Required Level |
|---|---|
 Signal 50
|
Raise the Signal 50 to Level 13 |
Alternatively, players who have reached Account Level 25 can opt to complete Armory Unlock challenges to get the .50 Cal Armor Piercing attachment, early.
Once you unlock this feature, modify your chosen gun at the Gunsmith and select the .50 Cal Armor Piercing from the Ammunition attachment slot of your weapon. This should activate its Armory Unlock contract, allowing you to complete Daily and Bonus Challenges to get it earlier.
| Guns That Can Use the Attachment | ||
|---|---|---|
|
Signal 50
|
 Victus XMR
|
 KATT-AMR
|
 XRK Stalker
|
||
| 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 MW3 Ammunition |
|---|
| This list is under construction! |
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