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The subject of this article appears in Call of Duty: WWII
For the similar perk, see Special Grenades x3.

"Three British N° 69 concussion grenades. Bonus: Immune to Shell Shock and Tactical Equipment."
— In-game description.

Stun x3 is a Basic Training featured in Call of Duty: WWII that is limited to be used in the Throwback Moshpit. It grants the user three British N° 69 concussion grenades and immunity to Shellshock and Tacticals in game.