I have been given a link to a site that describes the history of the Walther LG300 Dominator well enough to answer everything that I wanted to know at this stage, and although the blue laminate stock version of the Dominator is not mentioned, I have seen one, so I know that they do exist.


https://airgunaccuracy.wordpress.com...inator-rifles/


It turns-out that only the LG300 FT rifle used the name "Dominator", the LG400 FT rifle was not called a Dominator.