Welcome to the official Common Sense Self-Defense / Street Combat site. Founded by Grandmaster Bram Frank, CSSD-SC has been the hub from which he has promoted his Combat Arnis and Modular systems, along with his knife designs.

What are your CSSD goals today?

Online Instructor Training

We are now offering the ability to earn a Basic Instructor Certification in Modular Knife. The course is comprised of video training and one-to-one video access with Grandmaster Bram Frank and a test by video for the final exam.

  • This program consists of 29 segmented videos covering 4 hours of pure instruction. Filmed at the 3 day, 2018 Birthday Bash Instructor Camp.
  • You will learn the foundations of Modular, the 4 primary modules, switch points, decision points, Bram speak and concepts on how to teach the Modular System.
  • There will be 6 mandatory check-ins during your training to make sure you are on the right track.
  • You also get 3 additional, 30 minute one-to-one video chats with Bram Frank. This can be used for Q&A, guidance, or to talk about the weather.
  • You will also be provided with a digital supplemental resource book in PDF format

Once completed, students will receive a digital certificate that is suitable for printing, and get all other rights given to instructors.

Update your Information

Are you or have you been a CSSD instructor? Have you, at any time taken our courses in Combat Arnis, Modular Knife or CRMIPT?  If this is you, please take a moment and fill out the form via the following link.  We are in the process of updating our database.

CLICK HERE to fill out the form

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Introducing the Sister Christian and the Kopesh…

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Miss the last podcast GM Bram Frank was on? Watch/Listen to it here…