The Vickers machine gun was developed on the basis of the earlier Maxim weapon. The design prouded itself with great efficacy as well as almost a hundred percent reliability. These technically perfect Vickers guns were produced in really great numbers both for the army (these were water-cooled) and for the air force, where they were air-cooled. The British army had the Vickers in use well until the end of the 1960s, and in other countries' armies, the weapon served even much longer.
And as the Vickers machine gun remained in production for a long period, no wonder that the many production batches differed in various more or less important aspects. Our P35026 kitset features the WW2 style Vickers that was used during the war as well as in the post war years, namely in the Korea and Vietnam wars.