Pokemon.com has released the code to download four more Mega Stones to Pokemon Sun and Moon!
Pidgeotite, Steelixite, Heracronite, and Houndoominite are now available worldwide using the code AZUL.
To get the four Mega Stones:
Select Mystery Gift on the main menu.
Select Receive Gift.
Select Get with Code/Password, then Yes, and then Yes again to connect to the Internet.
Enter your password.
Watch as you receive the Mega Stones.
Speak to the deliveryman in any Pokémon Center to pick up your Mega Stones.
Be sure to save your game!
Like the other Mega Stone codes released so far, there is no end date for this code currently. Enjoy!