Aguirre's Fighting System

About

Owner and instructor Franklin Aguirre has over 30 years of experience, he has trained multiple pro fighters and is very confident he’ll be able to train you. It is all about the journey to transformation at Aguirre’s Fighting System. We hope you walk away from any class from our gym with new and improved skills, mindset, techniques, and characteristics that will help you build self-confidence, fitness, flexibility, concentration, self-discipline, endurance, and to lose weight.

A family-centered, Christ-centered martial arts academy in Fontana, CA — built on discipline, respect, and a passion for the fight.

• 25+ Years Training Champions
• 8 World-Class Coaches
• 10+ Disciplines Offered
• 100s of Lives Changed

More Than a Gym
At Aguirre's Fighting System, we are more than just a gym — we are a community built on discipline, growth, and purpose.

Founded by Coach Franklin and Rena Aguirre, AFS was created with a vision to develop not only skilled martial artists, but strong individuals on and off the mat. What started as a passion for teaching has grown into a thriving academy where students of all ages come to build confidence, character, and resilience.

We specialize in mixed martial arts training, offering programs in boxing, kickboxing, jiu-jitsu, and self-defense for kids, teens, and adults. Whether you're stepping in for the first time or pursuing competition at a high level, our coaching staff is committed to helping you grow at your pace while pushing you toward your full potential.

But what truly sets AFS apart is our culture.

We believe in creating a positive, family-oriented environment where everyone is seen, supported, and challenged. Our mats are a place where discipline is developed, respect is expected, and consistency is built. We don't just train fighters — we build leaders, families, and a community that shows up for one another.

As we continue to grow, our vision remains clear: to expand our reach, impact more lives, and preserve the values that make Aguirre's Fighting System what it is — a place where people don't just learn how to fight, but learn how to live with strength, integrity, and purpose.

Whether your goal is fitness, self-defense, competition, or personal growth — you belong here.

Where Families Train Together

AFS is built for the whole family. From our youngest students — as young as 4 years old — to adults competing at the highest levels, every class is designed to challenge, develop, and inspire.

Kids learn more than martial arts here. They learn how to focus, how to respect others, how to push through adversity, and how to lead with character. Many of our adult students started as kids in our program.

We believe that the best thing a family can do together is grow together — and the mats are one of the best places to do it.

Our Core Values

• Discipline
  Every class, every rep, every round — discipline is the foundation we build on. We show up, we push through, and we grow.
• Faith
  AFS was built on faith. Christ is at the center of everything we do, from how we treat our students to how we compete.
• Family
  You are not just joining a gym. You are joining a family. We look out for each other on and off the mats.
• Excellence
  We hold ourselves and our students to a high standard — in training, in character, and in everything we pursue.