Hey,
Thanks for asking this by the way!

I have been searching for a while to replace my Accustock as I have the .223 hunter Max1 and I was thinking there were no stocks that would fit that were easily available.

But from this thread it looks as if most stocks will be ok as long as they have a touch of inletting done.

I was thinking of the Boyds Feather Weight Thumbhole so I'll do a little more research and then get something ordered.