The JAK Maglift Kit is a new Aftermarket part added during Season 2 and changes the Haymaker shotgun into a room-clearing machine with an increased magazine and fire rate. Here is how to get the JAK Maglift Kit in MW3.
How to Unlock the JAK Maglift Kit in MW3
The JAK Maglift Kit attachment can be unlocked by completing five Season 2 Week 3 challenges. The five challenges must be done before the end of Season 2, or the Aftermarket part will then be moved to the Armory to unlock after the season.
There are a total of 21 weekly challenges among multiplayer, Zombies, and the Warzone battle royale modes. Only five across any of the categories can be completed to get the JAK Maglift Kit. Here are all the Season 2 Week 3 challenges that can be completed:
MW3 Multiplayer
- Get 30 Operator Barebones Kills with the Haymaker.
- Get 20 Operator Hipfire Kills with Recommended Pistols.
- Get 10 Operator Point Blank Kills with Recommended Shotguns.
- Get five Operator Triple Kills with Recommended Shotguns.
- Get two Operator Kills with one Magazine 10 Times with Recommended LMGs.
- Get two Operator Kills with one Magazine 20 Times with Recommended Marksman Rifles.
- Get seven Operator Longshot Kills with Recommended Shotguns.
MW3 Zombies
- Get 250 Critical Kills with a Recommended Shotgun.
- Get 100 Critical Mercenary Kills with a Recommended Marksman Rifle.
- Get 10 Kills without being hit 20 times with a Recommended Shotgun.
- Get 25 Hellhound Kills with the Haymaker.
- Get 150 Kills with a Recommended Shotgun at Legendary (Orange) Rarity.
- Get 300 Kills in Full-Auto Fire Mode with a Recommended Weapon.
- Get 50 Mercenary Kills with a Recommended Pistol.
MW3 Warzone Battle Royale
- In Warzone Urzikstan, get 10 Operator Kills in the North-West Region (Resort, Power, Seaport, Cargo).
- In Warzone Urzikstan, get 10 Operator Kills in the Southern Region (City, Suburbs, Manor).
- In Warzone Urzikstan, get 10 Operator Kills in the Eastern Region (Military Base or Farms).
- In Warzone Urzikstan, get 10 Operator Kills in the Central Region (Old Town, Low Town).
- In Warzone, place in the top 10 five times.
- In Warzone, complete 15 Contracts.
- In Warzone, open 50 Loot Caches.
For more on Modern Warfare 3 Aftermarket parts, check out our guide on how to unlock the JAK Lamb Ripper for a variety of weapons to use.