Guns7,5 cm StuK 37 L/247,5 cm StuK 37 L/247,5 cm StuK 37 L/24Caliber75 mmBarrel length24 calibersVehicles 6193719381939194019411942194319441945StuG III Ausf. A30May 1940 – Jun 1940≈ Jun 1941 – Dec 1942StuG III Ausf. B300Apr 1941 – Apr 1941≈ Jun 1941 – Dec 1943StuG III Ausf. C50≈ Jun 1941 – Dec 1943StuG III Ausf. D150≈ Jun 1941 – Dec 1943≈ May 1942 – Nov 1942StuG III Ausf. E284≈ Jan 1942 – Dec 1943StuG III Ausf. A (Pz.Kpfw. III Ausf. G chassis)