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?

• Becoming an Instructor
• Become a Member of CSSD/SC
• Look for Training Near Me
• Host Bram Frank for a Seminar
• Watch Training Videos
• I’m just here to buy knives

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

Pre-Order New Knives

Introducing the Sister Christian and the Kopesh…

Podcast

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