★ S6 New Guns: DTIR 30-06 | Kastov LSW
☆ S5 Reloaded Dark Aether Keys and Locations
★ Mr. Peeks | Drum | Locked Diary | Giraffe Toy
☆ Final MWZ Story Mission: Ascension Walkthrough
★ Zombies Map | Dark Aether Interactive Map
☆ Rarity vs Pack-a-Punch Damage Chart
The 40 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 40 Round Mag and find out all compatible guns for this attachment!
List of Contents
The 40 Round Mag attachment can be unlocked by leveling up the following guns in MW3 multiplayer, Zombies, or Warzone:
| Weapon | Required Level |
|---|---|
 Lachmann Sub
|
Raise the Lachmann Sub to Level 14 |
 Kastov 762
|
Raise the Kastov 762 to Level 14 |
 TAQ-56
|
Raise the TAQ-56 to Level 7 |
 Lachmann-556
|
Raise the Lachmann-556 to Level 13 |
 MCW
|
Raise the MCW to Level 6 |
 Rival-9
|
Raise the Rival-9 to Level 6 |
 Longbow
|
Raise the Longbow to Level 24 |
 Holger 26
|
Raise the Holger 26 to Level 8 |
 Holger 556
|
Raise the Holger 556 to Level 13 |
 WSP Swarm
|
Raise the WSP Swarm to Level 21 |
 Striker 9
|
Raise the Striker 9 to Level 15 |
 DG-56
|
Raise the DG-56 to Level 12 |
 DM56
|
Raise the DM56 to Level 18 |
 RAM-7
|
Raise the RAM-7 to Level 20 |
 RAM-9
|
Raise the RAM-9 to Level 9 |
Alternatively, players who have reached Account Level 25 can opt to complete Armory Unlock challenges to get the 40 Round Mag attachment, early.
Once you unlock this feature, modify your chosen gun at the Gunsmith and select the 40 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 | ||
|---|---|---|
|
Lachmann Sub
|
 Lachmann Shroud
|
Kastov 762
|
|
TAQ-56
|
Lachmann-556
|
 RPK
|
|
MCW
|
Rival-9
|
Longbow
|
|
Holger 26
|
Holger 556
|
WSP Swarm
|
|
Striker 9
|
DG-56
|
 WSP-9
|
|
DM56
|
RAM-7
|
RAM-9
|
 Superi 46
|
 STG44
|
 DTIR 30-06
|
| 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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