I haven't tried, but from the pictures (
better on eHobby) you can see clearly that it will not fit on the ICS model at all.
The ICS lower receiver has two holes in it (female ends) and the butt stock goes into the two holes (male ends). I know ICS has foldable stocks in their m4/m16 lines which lead me to believe there must be a place where you can just simply buy different attachments for the gun.... sadly... I was mistaken. It is starting to feel like a needle in the haystack.