The Atom disc by MVP Disc Sports was PDGA Approved as of 12-7-2014.

"The Atom is the first putter to debut in our new Electron Plastic, which is a retooled version of our Electron Prototypes released last month. Our Electron plastic is high-technology form of "Baseline" plastic with a faster wear-in period. It will consist of two flexibility options in the central core along with with a consistently soft rim. It's engineered to have optimal grip in vast playing conditions, including conditions with excessive moisture. It's profile allows for a straight neutral flight for high power throwers as well as a straight stable flight for low power throwers. It's workable stability and superior grip will make the Atom a staple GYRO putter in 2015." - by MVP Disc Sports