Institute of Combat

Combat Focused Martial Arts Training & Conditioning

We have been training people of all skill levels privately since 2001. It is with great pride that we join with HealthSPORT to open our doors to the public and provide our members with evolving methods in a clean and safe environment.

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21 Grams Gym

Private Setting, Instructor Led, Group Strength & Conditioning Training

21 Grams Gym offers private strength & conditioning training. Whether your sport/job requires you to peak on the day of competition, or to maintain a high level foundation annually, we’ve got you covered.

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Exceed Your Own Expectations

Together Institute of Combat & 21g Gym are Humboldt County’s premier Mixed Martial Arts and Strength Training Facility. Located in Arcata, CA we are suitable for anyone, whether it be the individual looking to get in shape, gain the ability to defend themselves, or the experienced fighter looking to take their skills to the next level.

While Institute of Combat focuses explicitly on martial arts that are proven in combat, 21g focuses on helping everyone improve their health & fitness in a no frills private environment.

At a Glance:

  • Largest and most complete martial arts/strength gym in the county
  • 5,000 square feet of training space
  • Boxing, Muay Thai, Jiu-Jitsu, MMA, Self Defense, & Wrestling Classes
  • 1-on-1 Lessons available in all fighting styles
  • Instructor led group weight training
  • 30+ Years Combined Coaching Experience
  • Multiple National, State, and World titles in wrestling, Jiu-Jitsu, & MMA

We will make you fit, strong & confident

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Popular Offers


This class incorporates techniques from Boxing, Kickboxing, & Muay Thai.

21 Grams – Small Group

The training here is diverse and focused to achieve specific goals for each individual.

Wrestling (K-12)

This class focuses on freestyle, folkstyle, and greco roman style wrestling.

Brazilian Jiu-Jitsu

This class focuses on Jiu-Jitsu self defense and sport techniques wearing the traditional kimono/gi.

No GI Jiu-Jitsu / Submission Grappling

This class blends wrestling and Brazilian Jiu-Jitsu techniques without the Gi/Kimono.

1-on-1 Coaching

We offer private 1 on 1 lessons in all fighting styles.

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