Zf.Ger.38

The Zf.Ger.38 or Zielfeuergerät 38 is a blowback-operated blank-firing machine gun designed and produced by Haenel in 1938, serving the Wehrmacht for training purposes throughout World [War II]. Utilizing 7.92×57mm wooden bullet blanks, it has a simple yet sturdy construction reduced to the most necessary functioning parts.
Post-war examination by the Allies of [World War II|Allies] categorized the Zf.Ger.38 as a “spring gun” or “trip wire-activated static defense machine gun”.