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.

** Month of OCTOBER Special **
15% & Free Shipping on the Sister Christian

Special Ends 10/31/22

Limited Item Now In Stock! – The CSSD Challenge Coin


Store Categories

Lapu Lapu Corto
(LLC) Knives

Desangut Knives

Training Drones

The CRMIPT


Other Opportunities

From Bram’s Personal Collection

Virtual Training

Bram’s Birthday Training Camp

Find A Local
CSSD School


This Week’s Training & Event Calendar


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


Video Series On Bram Frank

A series filmed and presented by Guro Francis Serrano.

Other Episodes In the Series…