From the release:
Lending mobile anti-tank capability to hard-pressed Belgian forces is this new resin 47mm FRC carrier.
The 47mm anti-tank gun made by the Fonderie Royale de Canons (FRC) was an artillery piece developed in 1931 for the Belgian army which saw widespread service in the Battle of Belgium in 1940. It was colloquially known as the “‘Quat’sept” (Forty-seven) by the soldiers that used it. Given its good armour penetrating capabilities, the ’47? could penetrate the 30 mm armour of the German Panzer III and Panzer IV tanks from a range of over 500m.