If you've been playing Pokemon Sun and Pokemon Moon and are looking for some new Mega Stones, you've come to the right place! There's a distribution code that will give you five different codes that will allow you to Mega evolve Pokemon!
All you have to do to grab the stones for Pokemon Sun and Moon is enter the following code:
The stones will all the player to evolve the following Pokemon into their Mega form: Banettite, Blaziken, Cameruptite, Sceptile, and Swampert.
According to serebii., the Mega Stones cannot be used in Rated Battle on Battle Spot until July 18.