BECOME THE BEST VERSION OF YOURSELF
Start your journey with Defiant Martial Arts today—claim your Two-Week Free Trial! Step onto the mats and transform your life!
RMNU EURO CAMP 2025
- May 2nd, 3rd & 4th
- Start 09:00 AM - 17:00 PM
- Defiant Martial Arts HQ
UKBJJA CERTIFIED GYM
We are proud to be apart of the UKBJJA as a Gold Member club!
Certified Instructors
With 6 black belts on the mats and loads of higher belts leading the way.
150+ Members
Our community is one of our biggest attributes and is a clear indicator to our success.
WRESTLING
JIU JITSU
_ JUDO
PROUD MEMBERS OF THE RMNU TEAM!
RMNU IRELAND
RMNU (Robson Moura Nations United)
We are proud members of multiple-time world champion Robson Moura
In Partnership With
CLASSES AVAILABLE
BRAZILIAN JIU JITSU
Explore the nuances of Gi and NoGi Jiu-Jitsu and elevate your grappling skills to the next level!
JUDO - KOOKATEKI
Learn the are of throwing and falling with Kookateki Judo a great compliment to your BJJ!
Barbarians Wrestling
Learn freestyle wrestling from Northern Irelands leading wrestling coaches
What our members think!
We’re really proud of the wonderful community we’ve created together! One of the most important ingredients to our success is this vibrant community! Our team is incredibly welcoming and truly unmatched in its support.
BJJ Practitioner
I've been a member of Defiant Martial Arts for almost 6 months, and I can't recommend this club enough! I don't have a contact sports background or any form of martial arts experience prior to joining, so it's safe to say I was very nervous stepping onto the mats for the first time. Justin, his coaches, and all the members made me feel very welcome and put my nerves at ease and safely let me experience arm bars for the first time!! Like me, take your first steps with Defiant Martials Arts and make friends and experiences for life!
BJJ Practitioner
Fantastic and very welcoming gym. Justin is highly knowledgeable & experienced and has a great ability to teach without overwhelming novices (like me) with too much information. The other coaches and higher belts are always helpful and keen to offer their advice. My son also attends and he loves it - the difference in his discipline, social skills, listening to instructions etc has been fantastic. BJJ is tough but highly rewarding and this is a great place to learn!
Father and BJJ Practitioner
Great gym with amazing coaches and people. Started bjj 5 months ago, initially I was really nervous but the guys here made me feel welcomed instantly! Everyone is super friendly and the gym has a great atmosphere about it. Great place to start
BJJ Practitioner (Blue Belt)
Our Coaches
Head Coach
Justin McGibbon
Coaches
Erika Lim
Coaches
Kevin Wright
Get in TouchTrain with us and discover your true potential. All it takes is that first step!
Completed the below form, and a member of our team will reach out to schedule your free trial.
Super friendly gym! I started here almost a year ago and I’ve dropped two dress sizes just with showing up to class and having fun. It’s such a different sport and the people are supportive and easy going. Gym is clean and there’s good space for changing. Plus there are weights etc if you want to add that to your training as well. You can train only women or the coach will place you with someone higher up to look after you. Always really good at monitoring how you’re doing it’s great. Highly recommend