It's curious, a lot of Carbine parts I get my hands on in the UKcome from France
and Italy
, Walnut and beech stocks etc.
I would think the availability of early parts would largely depend on how many early Carbines were left in Europe after WW2.
My understanding is that virtually the entire stock went through post war rebuild in the US and large quantities of these went back to Europe under the Marshall program.
Why would poor foreign operators bother sourcing the parts and upgrading donated rifles to the latest spec when they worked perfectly well in the first place?
It also begs the question of what happened to all those push button safeties, type 1 and 2 bands and L flip sights, considering they were made in the millions!