GRAB®-300 (ASTM M50)

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TypeActive Vehicle Barrier
CertificationASTM M50 - 15,000lbs @ 50mph
Awards2009 GSN Homeland Security Award for "Best Crash Barrier"

The Ground Retractable Automobile Barrier (GRAB®-300) system is an active vehicle barrier that has met the demanding ASTM M50 test criteria established by the Department of Defense. The system provides ultimate security while reducing the likelihood of injury to vehicle occupants. In numerous real world impacts, the GRAB barrier has effectively stopped vehicles weighing up to 15,000 pounds traveling at speeds reaching 50 mph.

The GRAB system has been the barrier of choice for government agencies, military, petrochemical industry, and a wide variety of corporate companies and civil clients.


  • ASTM M50 crash certified
  • Energy-absorbing technology
  • Reduced risk to vehicle occupants and facility
  • Ability to be reset and be back in operation within minutes of impact
  • Cost efficient: replaces multiple barriers with one GRAB system
  • Flexible design suitable for access control or final denial applications
  • Reusable system: interchangeable parts for quick and easy replacement
  • No hazardous materials
  • Traffic control devices integrated into barrier design
  • Low maintenance requirements
  • All weather operation
  • Certified by the US Department of Defense to protect most roadways from single lane to over 60’ with a single barrier
  • Custom covers available to match facility design standards
  • All electric operation
  • Short stopping distance

grab-300-astm-m50-pdf grab-300-astm-m50-pdf



The GRAB system is proven to be reusable after impact. This feature is beneficial to replacement costs and facility operation. With other active vehicle barrier systems, there is a significant replacement expense and down time after an impact. It is possible to clear the scene and reset the GRAB in minutes allowing continued operation of the facility and traffic control.


Upon impact, the GRAB’s net breaks free from four shear pins (shown above) that are attached to the lifting arms. The net is anchored to four pistons that absorb the impact energy. The pistons are pulled as needed by the force on the net and can swing from the stanchions in multiple directions to follow the pull of the restrained vehicle.

The GRAB-300 was awarded the 2009 GSN Homeland Security Award for “Best Crash Barrier.”