Sturmgeschütz or StuG III

When it first appeared the Sturmgeschütz, or as it is more commonly known the StuG III, was a unique weapon – a powerful artillery gun mounted on a fully armoured, tracked, low slung chassis based on the Panzer III medium tank, and designed to provide close support for the German infantry
The Sturmgeschütz Ausf.A was the first production version of the StuG III assault gun, designed to provide the German infantry with a fully armoured mobile artillery gun.
The Sturmgeschütz Ausf.B was the second version of the StuG assault gun, and saw the introduction of all of the improvements that had been made to the tracks of the Panzer III between the Ausf F and the Ausf H.
The Sturmgeschütz Ausf.C was the third version of the StuG III assault gun, and saw only minor modifications from the Ausf B.
The Sturmgeschütz Ausf D was very similar to the previous StuG III Ausf C.
The Sturmgeschütz Ausf.E was the final version of the StuG III assault gun to carry the short 7.5cm gun and to be designed as a close support vehicle for the infantry.
The Sturmgeschütz III Ausf F saw a major change to the design of the StuG III with the adoption of the long barrelled 7.5cm Stu.K.40 L/43.
The Sturmgeschütz III Ausf F/8 was the second version of the StuG III to carry the longer 7.5cm StuK40 L/48 gun, and differed from the Ausf F in the use of the hull from the Panzer III Ausf J
The Sturmgeschütz III Ausf G was the final version of the StuG III and was produced in vast numbers, with a total of 7,720 produced from new between December 1942 and the end of the Second World War