Practical Defense Systems is part of KBTN Inc., a GSA friendly company. What makes us GSA friendly is our commitment to excellence in everything we do, our small business size and the structure and ownership of our business.

KBTN Inc. is:

  • A small business
  • Owned and operated by:
    • Two minority women and,
    • a minority, service disabled veteran.

We are a California sub-chapter S corporation headquartered in San Diego County California with two divisions:

  • Security & Protective Services:
    • RoninSI, a licensed security &  protective services company –
  • Training:
    • Practical Defense Systems, a licensed training facility for security officers and police.

Having both security & protective services along with top quality security and police officer training under one roof makes KBTN an ideal and cost-effective security force and training solution for D.O.D. and other government installations.

We provide our security officers with continual training on a quarterly basis, with additional online training available to our officers 24/7/365.  Our ability to provide officers with ongoing, state of the art advanced training ensures that RoninSI security officers are better trained, more up-to -date, more professional and better equipped to meet our client’s needs than any of our competitors.

Constant training also affords us the advantage of receiving continuing valuable feedback from our officers regarding client and officer needs.  Our training staff at Practical Defense Systems reviews officer feedback and client needs on a monthly basis, adjusting existing programs and adding new training curricula whenever needed.  In this way our training is constantly updated and remains current and relevant to the needs of our clients and the officers who serve them.


  • California Corporation ID #3481139
  • DUNS # 044328894
  • NAICS #611519
  • CAGE Code #69AE8
  • Cal BSIS Firearms Training Facility # TFF-1296
  • Cal BSIS Baton Training Facility # TFB-1197