One of the best US shops regarding sights and mounts is MAC-1. Might be worth a look to see what they have on their web site, even if you want to go a cheaper route. They used to ship to Europe and probably still do. Precision Pellet also supports European sales and is a good source for almost anything for US airguns, especially vintage parts.
Have the main base for one here if it's any good to you?. John
snarepeg.
Nothing. Send me your address and will post it to you. John
snarepeg.