Finding a R85 (or L85) Replacement Safety Spring

[S Porteous]

Does anyone know where I might be able to get hold of a replacement safety spring for my Army Armaments R85?  I had an argument with it when I was putting the grip back on after painting it, and it snapped.

I'm guessing it could be the same as the one in the G&G L85.

For now, I've made something that does the job from a safety pin, but I'd like to get the proper thing in if I can find one.

Many thanks