The 37mm AA gun is the Zvezda plastic kit built straight from the box. In
response to a transport shortage my gunners have 'liberated' an Airfix Opel
Blitz and 're-branded' it to reflect the change of ownership.
The gun barrel is very thin and ever so slightly bendy, but it is a very nice model - for wargames purposes easily as good as the rather similar Airfix Bofors gun.