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The 45 Round Mag is a gun attachment found under the Magazines attachment category of Modern Warfare 3 (MW3). Check out our guide to learn how to unlock the 45 Round Mag and find out all compatible guns for this attachment!
List of Contents
The 45 Round Mag attachment can be unlocked by leveling up the following guns in MW3 multiplayer, Zombies, or Warzone:
| Weapon | Required Level |
|---|---|
 Vaznev-9K
|
Raise the Vaznev-9K to Level 11 |
 Kastov-74u
|
Raise the Kastov-74u to Level 14 |
 M4
|
Raise the M4 to Level 5 |
 ISO Hemlock
|
Raise the ISO Hemlock to Level 18 |
 Chimera
|
Raise the Chimera to Level 16 |
 M13B
|
Raise the M13B to Level 8 |
 Tempus Razorback
|
Raise the Tempus Razorback to Level 8 |
 FR Avancer
|
Raise the FR Avancer to Level 10 |
 TR-76 Geist
|
Raise the TR-76 Geist to Level 20 |
 SVA 545
|
Raise the SVA 545 to Level 18 |
 Bas-B
|
Raise the Bas-B to Level 19 |
 FR 5.56
|
Raise the FR 5.56 to Level 8 |
 BP50
|
Raise the BP50 to Level 19 |
Alternatively, players who have reached Account Level 25 can opt to complete Armory Unlock challenges to get the 45 Round Mag attachment, early.
Once you unlock this feature, modify your chosen gun at the Gunsmith and select the 45 Round Mag from the Magazine 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 | ||
|---|---|---|
 ISO 45
|
Kastov-74u
|
 Kastov 545
|
|
M4
|
M4
|
 M16
|
|
ISO Hemlock
|
M13B
|
Tempus Razorback
|
 M13C
|
FR Avancer
|
TR-76 Geist
|
|
SVA 545
|
Bas-B
|
FR 5.56
|
 TAQ Eradicator
|
BP50
|
|
| 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 | |||
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