Only available if you have the Market Garden module.
According to Wikipedia:
“Panzer III Ausf. G – More armour on gun mantlet. Armed with 3.7 cm KwK 36 L/46.5 (later 5 cm KwK 38 L/42) gun. 600 produced in 1940-1941.”
According to BFC manual:
“The 37mm cannon was replaced by a better penetrating KwK L/42 50mm cannon in the Panzer III Ausf. G.”
2 decal options, weathering added as usual.