Not yet, but since it is designed to fit any AEG, I can't see why it would not work after the little mods I described.
The only difference would be to use the 1" long screw that came with the original ICS stock instead of the 4" long one from the DBoy kit.
I find that folding stocks are extremely ugly on an M4. First the tube is there for function. An M4 cannot work without a buffer tube at least 3" long (because the bullet needs to be cleared by the bolt). And I also found over time that I never fold the stock on any fold-able stock gun (I had an AK74U and G36s). Even a collapsible is seldom pushed in.
You will also have to re-wire your mechbox and find a place for the battery...
I re-checked and it might not fit strait up. Instructions say to cut down the mounting tube. You can't do that with an ICS tube (unless you want to cancel the split mechbox). You can however install some sling mount spacers to clear the tube and then install it the same way. I am guessing that at most 2 maybe 3 spacers would be enough. It will also cover the screw from the ICS adapter to add to the look.
Here, that sling mount would be perfect:
http://shop.ehobbyasia.com/gandp-kac...or-m4-aeg.html
Or that one with a little grinding to make the rear flat and add a stock spacer to plug the hole
http://shop.ehobbyasia.com/king-arms...ing-mount.html