About Us

Common Sense Self-Defense / Street Combat (CSSD/SC) is an international organization which Grandmaster Bram Frank founded in order to teach his systems of Combat Arnis, Modular Knife, CRMIPT, and Bolo. He also uses it to sell and promote the knives he designs.

As an organization, CSSD/SC has certified instructors around the world passing on the knowledge of GM Frank’s systems. Please see in the Instructor List for the most up-to-date list, or the Charter School page to find an instructor in your area.

CSSD/SC uses this website as a porthole for students and instructors to connect with GM Frank, buy knives and other CSSD/SC products, as well as access training materials to improve their classes. Check out the Store for available products.

If you would like to get in contact with us, or to ask a question, please feel free to Contact Us.

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