WWII special assault rifles built for the SAS only

[GeeRam]

Graham Rose and Jimmie Storrie..............JALO Oasis 1941 didnt know the photo was being taken! This image will confirm that the weapons they used were issued only.

Maybe not.....

That looks very much like a Colt New Service revolver in his hands, which was a WW1 British issue, but in .455 Webley calibre.....whereas the US and Canadian post WW1 issue Colt New Service revolvers were usually in .45ACP calibre, and I would think .45ACP ammo supply (same as the Thompson) was more readily available than old .455 Webley, so I suspect that Colt may not have been a WW1 era British issue and was thus acquired by 'other' means....???