King of Prussia's Premier Kickboxing, Muay Thai, Gracie Brazilian Jiu Jitsu and MMA Academy We offer authentic Muay Thai classes, Gracie Brazilian Jiu Jitsu classes, Kickboxing classes, and Mixed Martial Arts classes (MMA), and Self Defense classes. Many of our students will train for Fun, for Art, for Fitness, or for Competition. Our friendly staff with guide you every step of the way.We have a professional staff who are professional athletes. Many of our fighters compete at the highest level. Such as UFC, Bellator, Strikeforce, M-1 Global to name a few. We are proud affiliates of Sityodtong USA.Established in 2006, Nak Muay Gym has remained on the cutting edge of modern day martial arts.