The M548A1 Cargo Carrier was designed for the US Army in the 60’s using the basic components of the M113 tracked armoured personal carrier. M548’s engine and crew compartment are at the front of the vehicle and the cab roof around the body can be removed for air transport. If required, an M66 ring mount for an anti-aircraft machine gun could be mounted over the top of the cab.
The M548A1 is still in service in Australia, Canada, Egypt, Germany, Greece, Israel, Italy, New Zealand, Norway, Portugal, Spain, Switzerland, Tunisia, United Kingdom and the United States, amongst others.