K Guard & Matrix System by Mikey Musumeci – In-Depth Review

A step-by-step K guard and Matrix back-take roadmap that turns entries into reliable back exposure.

The Bottom Line

You learn a coherent K guard to Matrix system with clear decision points. It focuses on posture control, hook mechanics, and back exposure without gi grips. You will not get grip-based collar-sleeve chains.

⚡️ Quick facts

Best for: Guard players chasing backs

Skip if: You dislike inversions

Tech focus: K Guard, Matrix, Back Takes

Biggest takeaway: Back exposure from K guard

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What You'll Learn

Mikey ties together K guard entries with his Matrix back-take so you can attack the back without relying on grips. Eight volumes cover concepts, drills, entries, and contingencies.
It is system-first: posture control, leg pummeling choices, then structured pathways to babybolo, twister hooks, and climbs.

Primary Techniques You'll Drill

  • K Guard
  • Matrix
  • Back Takes
  • Babybolo
  • Twister Hook
  • Entries
  • Leg Pummeling
  • Off Balancing

Format & Level

  • Instructional style: System Based, Conceptual, Drill Heavy
  • Skill level: Intermediate
  • Format: No-Gi
  • Runtime: 4 hours and 55 minutes
  • Volumes: 8

Should You Buy It?

Buy it now. I ranked this first because it teaches a repeatable back-take framework that works across body types without relying on gi grips.

Why Mikey Musumeci?

Mikey Musumeci is a multiple-time IBJJF black belt world champion and ONE flyweight submission grappling champion known for precise, system-based guard and leg attacks.

Community feedback

Here’s a summary of common feedback from platforms like Reddit’s r/bjj.

😍 Why People Love It

  • Praised as a complete system thinker who explains why positions work, not just what to do.
  • People value his contingency mapping when your first back-take fails.
  • Seminar-goers highlight his clarity and enthusiasm translating well to video.

🤔 Common Criticisms

  • Some users find his longer sets repetitive and wish for tighter editing.
  • If you never play K guard, the depth may feel excessive.
  • Eight volumes can be a heavy lift to study end-to-end.

Smart Alternatives

Sources & References

Official listing: View K Guard & Matrix System: Attacking The Legs From The Knees Part 1 on BJJ Fanatics

Additional References

Your next step

You have the breakdown, community feedback, and my final thoughts. Now it’s your move.

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