Seems like it was already available last year by this time.
Couldnt find proper real photos off Google, but in this video a dude eats one.
https://www.youtube.com/watch?v=6dEh-e6NpFQ
Upside down like a fucking animal.
OMG I laughed so loudly at the "fucking animal", thank you sir.
If I am not wrong, they already sold it here a while ago, don't remember exactly when since I don't like McDonald's.