How to unlock JAK Backsaw Kit Aftermarket Part in MW3 & Warzone

MW3 and Warzone players can get the JAK Backsaw Kit in Season 2 Reloaded, a new Aftermarket Part attachment that completely changes the Holger 556. So, here’s how to unlock it.

MW3 and Warzone players were gifted even more new content in Season 2 thanks to the Reloaded mid-season update.

While players enjoy new maps, weapons, and balance changes, one aspect of both games that keeps them coming back is the Daily and Weekly Challenges. These not only help you level up your Battle Pass nice and fast, but they also offer some great rewards.

So, for those looking to get the JAK Backsaw Aftermarket Part Conversion Kit for the Holger 556, here’s everything you need to know.

How to get JAK Backsaw Kit in Warzone & MW3

To unlock the JAK Backsaw Kit in Modern Warfare 3 and Warzone, players must complete any five challenges from Week 6 of the Weekly Challenges. These span across multiplayer, Zombies, and battle royale, so pick your poison and complete five of them to unlock the Aftermarket Part.

Complete the Week 6 Challenges in #MW3 to earn the JAK Backsaw Kit, a double-barrel config allowing the Holger 556 to fire two bullets at once. pic.twitter.com/skhTD55C3q

— Sledgehammer Games (@SHGames) March 13, 2024

Here’s a full list of all the Week 6 challenges you can complete to unlock the attachment:

Multiplayer

• Get 15 Operator Hipfire Kills with Recommended Assault Rifles
  • Reward: 2,500 XP
• Get 10 Operator Double Kills with Recommended SMGs
  • Reward: 5,000 XP
• Get 10 Operator Hipfire Kills with Recommended LMGs
  • Reward: 5,000 XP
• Get 20 Operator Tac Stance Kills with Recommended LMGs
  • Reward: 5,000 XP
• Get 30 Operator Hipfire Kills with Recommended SMGs
  • Reward: 7,500 XP
• Get 20 Operator Kills while ADS with a Recommended Shotgun
  • Reward: 7,500 XP
• Get 15 Operator Point Blank Kills with the Holger 556
  • Reward: 10,000 XP

Zombies

• Get 250 Kills in full-auto mode with a Recommended Battle Rifle
  • Reward: 2,500 XP
• Get 150 Kills with a Pack-A-Punched Longbow
  • Reward: 5,000 XP
• Get 250 Critical Kills with a Pack-A-Punched Recommended Weapon
  • Reward: 5,000 XP
• Get 250 Kills with the Haymaker at Epic (Purple) Rarity or Higher
  • Reward: 5,000 XP
• Get 5 Special Zombie Critical Kills with a Recommended Weapon
  • Reward: 7,500 XP
• Get 300 Kills with a Pack-A-Punched Holger 556
  • Reward: 7,500 XP
• Get 250 Kills with a Silenced Recommended Battle Rifle
  • Reward: 10,000 XP

Battle Royale

• In Warzone Fortune’s Keep, open 20 Loot Caches in the North Region (Gatehouse, Keep, Terraces)
  • Reward: 5,000 XP
• In Warzone Fortune’s Keep, open 20 Loot Caches in the West Region (Graveyard, Overlook, Town)
  • Reward: 7,500 XP
• In Warzone Fortune’s Keep, open 20 loot caches in the Eastern Region (Konni Outpost, Lighthouse, Pier, Winery)
  • Reward: 5,000 XP
• In Warzone Fortune’s Keep, open 20 Loot Caches in the South Region (Ground Zero)
  • Reward: 7,500 XP
• In Warzone, complete 15 Contract(s)
  • Reward: 5,000 XP
• In Warzone, place in the top 10 5 time(s)
  • Reward: 10,000 XP
• In Warzone, get 40 Kills or Assists with a Recommended Weapon
  • Reward: 2,500 XP

Completing any five of these challenges across all the modes will unlock the JAK Backsaw Kit for the Holger 556, which gives the LMG a drum magazine and the ability to shoot two bullets at a time with a “double-barrel configuration.”

For more MW3 and Warzone guides, be sure to also check out:

How to fix packet burst in Modern Warfare 3 | Best FOV settings for Modern Warfare 3 | Best Warzone controller settings | Best Warzone PC settings | Best Assault Rifles in Warzone | Best SMGs in Warzone | Best FOV settings for Warzone | Best audio settings for Warzone