Panzerschreck was the popular name for the Raketenpanzerbüchse ('rocket armor rifle', abbreviated to RPzB), an 88 mm calibre reusable anti-tank rocket launcher developed by the Germans in World War II. Another popular nickname was Ofenrohr ("stove pipe").
It was given to infantry to bolster their anti-tank capability. The weapon was shoulder-launched and fired a rocket-propelled, fin-stabilized grenade with a shaped charge warhead. It was made in much smaller numbers than the Panzerfaust, which was a disposable recoilless rifle firing an anti-tank warhead.
Two were seen being used during the battle in Ramelle by incoming German infantry. Private Ryan noticed one and personally killed the user by tossing a 60 Mortar round at them. Another was also seen being prepped by another German, who fired it, successfully killing two of the American soldiers.