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K-4-S (Self-defense) www.youtube.com/wmpyr





K4S is an organization that brings to you unique products and martial arts.
We teach "Practical-Tactical" self-defense in the Houston Texas area.
(A combination of Aikido, Karate, Kali, and MMA)
contact: knifebat@yahoo.com
For more information, please visit our blog.

FREE e-book


Chain Punch for MMA
Modified Wing Chun Chain Punch for Cage Fighters.



My first knife made by yours truly

Tactical Hunting Knife: The Doebowie


  • Heat Treated 440C hollow grind, full tang
  • Pakka Wood, wine wood color
  • Primary and secondary Lanyard holes (to put a hand guard, hand sling, etc.)
  • Mermaid tail shape handle (for switching into various grip styles)







Academies where I studied


Guadalupe School of Knifemaking


Lozano System (Kuk Sool Won + Arnis)


UTSA Aikido Club


Austin Martial Arts Academy


Prof. Marcio Simas, Gracie Barra


BJJ blue belt awarded by Prof. Carlos Machado


TABMOC, Martial Arts and MMA Team