Summary
The kit is an extremely well detailed version of the civilian AR-2 (43105) 6x6 in service as a special fire hose truck. The model has a complete chassis with a full engine, a well detailed cab, and a fire hose box with outstanding exterior detail. The fire hose box itself is empty. So if one wanted to display the doors open an interior would need to be fabricated.
Background
The following is excerpted from the instruction sheet.