Type 2 Paratrooper help.

Hey everyone, I have a T2 rifle but it is missing the forestock collar, #48 in the diagram. Does anybody have a line on something like this? I have already contacted Don, from Don's reproductions and he does not make this part. Any help is appreciated, Thanks! Attachment 104115

Rummage around here. All the links work.
Nambu World
However, Gunparts lists Type 99 parts. No Para models though.