The JAMBLOCK™ Safety System

  • We don't know WHEN it will happen again...

  • We don’t know WHERE it will happen again...

  • We don’t know HOW it will happen again...

  • We don’t know WHO will cause it to happen...

  • But we do know it WILL happen again.

The ‘next generation’ safety device for educational institutions, business and industry, police and first responders, and government is available today!

We don’t know WHEN it will happen again. We don’t know WHERE it will happen again. We don’t know HOW it will happen again. We don’t know WHO will cause it to happen again. But we do know it WILL happen again.

About McMar

McMar Design has created a crisis lockdown safety device that may be the most logical and affordable answer to your safety concerns. Our patented JAMBLOCK™ is a single piece of lightweight crafted steel that will secure virtually any door in seconds.

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McMar Believes

The JAMBLOCK… cannot prevent a shooter’s desire to kill.

The JAMBLOCK… cannot prevent a shooter’s attempt to kill.

The JAMBLOCK…can deter a shooter’s ability to kill.

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