40 mm Bofors AA guns made in GB and US

[welbike]

Just seen this thread, interesting! have a book about Firestone company history, and it tells all about the development and building of the US made Bofors guns, interesting! will see if I can find it.

Any idea what this on the picture is? all Airborne equipment, but looks bigger then 40mm ??

Cheers,

Lex