Folks-- Numrich Arms or Gun parts are the folks advertising on E-bay. For you folks outside of the US this maybe a problem as at one point they were are shipping some items overseas. You may want to check with them first. Here's a point of contact that has been the Lee Enfield volley sights as well as those parts for the P14 rifles which are missing from most of our rifles. They are re-productions for those folks who do not care. They are a bit pricey.

Lee Enfield Rifles for sale - EFD Rifles - the Lee Enfield rifle specialists

Cheers

fjruple