Unfortunately the European Union has instituted some changes in the collection of VAT that prevent us from shipping directly to individual consumers. Despite the changes in the relationship between the UK and the EU, this applies to UK residents as well.
You'll need to contact one of dealers directly and they can order the parts you need from us and deliver them to you. It's inconvenient, I know, but at least we still have a mechanism to get you what you need. Try Krale Shooting.