Re: Bah!
Almost certainly true in the UK, you just need to go through a lot more paperwork than in "The Land of the Free", my custom 10/22 (not sure if there are any Ruger parts in it apart from the magazines) was less than £250, and that included a scope and moderator (silencer or suppressor or what ever you want to call it).
I think in "The Land of the Free" you would need to spend that much on the license for the suppressor.