The Panzerbüchse 39 or PzB 39, ("tank hunting rifle model 39") was a German anti-materiel rifle used in World War II, chambered for the 7.92×94mm cartridge. Recognizable by its pistol grip, carry handle, bipod and a tubular side-folding stock with curved buttplate. The weapon is single-shot and utilizes a falling block action. An box that stores spare ammunition can be mounted on the gun's side, despite it is not feeding device (unlike magazines).