The CH SERIES is comprised of three models:  CH401M2, CH401M4 and the CH401M4BH.  These collapsible carts enhance mission capabilities by multiplying existing manpower, expanding operational range of ground forces, deploying weapon systems and assisting in the evacuation of forces, deploying weapon systems and assisting in the evacuation of casualties.  These models are currently deployed by all branches of the Armed Forces; Federal, State, and Municipal Agencies involved in disaster planning and response; Numerous Police and Fire Departments along with EMS and Search and Rescue Operations countrywide.