Season 3 of Call of Duty: Warzone and Black Ops 6 has brought a lot of exciting new content after a slow start to 2025, most notably the return of Verdansk and some of Warzone's classic weapons to go with it. There are two new assault rifles and a sniper rifle that Warzone veterans will be familiar with that are already usable in the game, with some more weapons coming later in Season 3.

There is technically another new weapon for players to get their hands on in Warzone, although it already existed in Black Ops 6. Thanks to a very clever attachment choice, the Swat 5.56 Marksman rifle can now be turned into the legendary Grau 5.56. It was popular in Modern Warfare and Warzone in 2020, and it's just as good as it used to be.

How To Unlock The Grau Conversion Kit Attachment

Turn The Swat 5.56 Into A Fully Automatic Assault Rifle

The Swat 5.56 is the first marksman rifle unlocked in Call of Duty: Black Ops 6, so you will have access to the base weapon instantly in Warzone. The Grau conversion kit is unlocked on page five of the Season 3 battle . As the Season 3 battle is ongoing, you won't be able to unlock the Grau 5.56 conversion kit through the armory challenge section until Season 4 begins.

The conversion kit is the first unlock on page five of the battle , and you only need 16 tokens to unlock it if you have the auto-complete setting turned off. You can only toggle the battle auto-complete feature if you've bought it, so if you're not spending money on the game, you will have to unlock it by completing the other six pages.

Best Swat 5.56 Grau Conversion Kit Loadout

The Best Attachments For The Converted Swat 5.56 In Warzone

The Grau conversion kit has turned the Swat 5.56 into the most powerful weapon in Black Ops 6 multiplayer, as it changes the damage profile of the gun entirely. It has also rejuvenated the weapon in Warzone, and successfully recreates how the original Grau 5.56 felt back in Warzone in 2020. The best attachments for the newly converted Swat 5.56 lean into that, making the Swat 5.56 an excellent long-range option.

Swat 5.56 Grau Conversion Loadout

With these attachments, the Swat 5.56 has low horizontal recoil, with very easy-to-manage vertical recoil. The conversion kit gives the Swat 5.56 clear and easy-to-use iron sights, but you can use an optic if you prefer instead of the foregrip. The conversion kit doesn't allow you to use a barrel attachment and only lets you use the 50-round magazine, which is suitable for long-range gunfights. If you pair the Grau with an SMG and the popular perks like you would with the Kilo 141 loadout, you've got one of the best long-range loadouts in Call of Duty: Warzone.