How to get JAK Thumper-656 in MW3 & Warzone

Kurt Perry

MW3 and Warzone Season 4 Week 4 is here, and the JAK Thumper-656 conversion kit has been added. Here’s how to get the new Aftermarket Part for the RGL-80 launcher.

The fourth AMP of Season 4 is available, following on from the JAK Harbinger, JAK Requiem, and JAK Scimitar. MW3 and Warzone’s latest addition gives the RGL-80 an improved long barrel that supports a variety of unique ammunition.

With the JAK Thumper-656 equipped, the RGL-80 can fire three ammo types: 40mm Slug, 40mm Sticky, and 40mm Drill Charge. These give the grenade launcher massively enhanced versatility, allowing it to function as a sort of utility secondary weapon.

Here’s how you can get the Jak Thumper-656 conversion kit in MW3 and Warzone to use this fascinating Aftermarket Part.

How to unlock JAK Thumper-656 in MW3 and Warzone

The JAK Thumper-656 aftermarket part equipped to the RGL-80 in MW3 and Warzone.

The JAK Thumper-656 conversion kit can be unlocked by completing any five weekly challenges from Season 4 Week 4. These challenges can be completed across multiplayer, Warzone, and Zombies, or even a combination of the three.

After you have finished five challenges and unlocked the JAK Thumper-656, the Aftermarket Part can be equipped on the RGL-80 in the Conversion Kit attachment slot. To do this, you’ll only need to reach level 6 on the MW3 grenade launcher.

All MW3 & Warzone Season 4 Week 4 Challenges

Complete any five of the following Week 4 challenges in Modern Warfare 3 and Warzone Season 4 to get the JAK Thumper-656 conversion kit:

Get 10 Kills against Operators who are blinded or stunned.Get 300 Kills with Frost Damage with a recommended weaponIn Warzone Urzikstan, open 20 Loot Caches in the North-West region
Get 10 Operator Kills with a Bomb Drone or Mosquito DroneGet 300 Explosive Kills with a recommended weaponIn Warzone Urzikstan, open 20 Loot Caches in the Southern region
Place top of the leaderboard 3 timesGet 2 Warlord Kills with a recommended weaponIn Warzone Urzikstan, open 20 Loot Caches in the Eastern region
Get 3 Operator Double Kills with Grenades or LaunchersGet 5 Kills with a Monkey Bomb 5 timesIn Warzone Urzikstan, open 20 Loot Caches in the Central region
Get 20 Operator Kills while using Explosive AmmoGet 300 Fire Damage Kills with a recommended weaponIn Warzone, place in the top 10 five times
Destroy 8 Aerial KillstreaksDestroy 15 Counter UAVs in Mercenary CampsIn Warzone, complete 15 contracts
Get 3 Operator Kills after deathsGet 50 Kills with a recommended melee weapon while Frenzied Guard is activeIn Warzone, get 10 Operator Kills or Kill Assists with a recommended weapon

For more great Call of Duty content, check out the best Warzone loadouts and MW3 loadouts to dominate your lobbies. Also, these breakdowns on the best snipersassault rifles, and SMGs to use will make winning more Warzone matches a breeze.