Hello Cyclops!
Hope your doing well after your surgery.
In answer to your question Bioval used to make a .88 gram BB that has since been discontinued, however you might be able to find someone who has been hoarding some…
As to currently, I've seen some .46g if that would be any help, I'm not sure by whom or if they even still make them but I'll look around and see if I can find some.
Airsoftee
Who's there? Oh, just me.
But you should know, I never travel alone…