How to Get JAK Headhunter Carbine Conversion in MW3

Gives this SMG a little more oomph.
MW3 JAK Headhunter Carbine Conversion
Screenshot by Prima Games

The JAK Headhunter Carbine Conversion is a new Aftermarket part introduced in Season 1 for the Rival-9 SMG. Here’s how to get the JAK Headhunter carbine conversion in MW3.

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How to Unlock the JAK Headhunter Carbine Conversion in MW3

The JAK Headhunter Carbine Conversion attachment can be unlocked by completing five Season 1 Week 1 challenges. The challenges do not have to be done within the first week, but must be done before the season is over to receive the new attachment.

There are a total of 20 weekly challenges for the first week among multiplayer, Zombies, and the Warzone battle royale modes. Only five from any of the categories can be completed to get the JAK Headhunter Carbine Conversion. Here are all the Season 1 Week 1 challenges that can be completed:

Multiplayer

  • Get 40 Operator Kills with a Recommended Weapon.
  • Get 20 Operator Headshot Kills with Recommended Marksman Rifles or Battle Rifles.
  • Get 7 Operator Kills while in Midair with a Recommended Weapon.
  • Get 3 Operator Kills Without Dying 3 times with Recommended Marksman Rifles.
  • Get 30 Operator Kills while Aiming Down Sights with the MCW.
  • Get 20 Operator Kills with Sights Equipped to a Recommended Battle Rifle.
  • Get 5 Operator Longshot Kills with Recommended Marksman Rifles.

Zombies

  • Get 750 Kills with a Recommended Weapon.
  • Drink 10 Perk-A-Cola Cans.
  • Get 300 Kills with a Pack-A-Punched Recommended Weapon.
  • Get 30 Mercenary Kills with Recommended Marksman Rifles.
  • Get 300 Kills while Aiming Down Sights with the MCW.
  • Get 300 Scoped Kills with a Recommended Battle Rifle.
  • Get 200 Kills with Recommended Marksman Rifles.

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, complete 15 Contracts.
  • 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, open 50 Chests or Containers that grant loot.

Is the JAK Headhunter Carbine Conversion Worth It?

Yes, the JAK Headhunter carbine conversion is worth it. It has exceptional bullet velocity and range, gun kick control for days, and admirable damage. We especially love the recoil controls, which helps out a lot with long-range offense. There are a few downsides with this conversion, however, such as low aim down sight speed and bad hip-fire spread. It also reduces your movement speed a but, though it’s more than made up for with all of its other positives.

For more on Modern Warfare 3 Aftermarket parts, check out our guide on how to get the JAK Heretic Carbine Kit for the MTZ-762 battle rifle.

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Author
Tom Meyer
Thomas Meyer fell in love with video games starting in the mid '90s with a NES, Super Mario Bros., Duck Hunt, and Jack Nicklaus' Greatest 18 Holes of Major Championship Golf. He hasn't stopped and is not planning to anytime soon.