Taschen Voll

Taschen Voll (also known as Max Ammo) is a power-up featured in the Nazi Zombies mode of Call of Duty: World War II. It works essencially as similar as Treyarch's version.

Details
After picking it up, unlike Treyarch's counterpart,  it not only refills the reserve ammo and secondary/third weapon, but also the current magazine in use, similar to Ammo Resupply in Exo Survival mode.