I'd like to think such an obvious flaw is just a fluke, and not typical, but I have to assume the product sent is a representative sample. Otherwise the unit conforms to FN specifications of an 18mm handle, a 1.86mm bit width, a 4.96mm rod diameter, and a 210mm rod length - or close enough for the differences to be immaterial. The end of the handle is radiused, however a more substantial radius would increase the comfort of the tool in the palm of my hand. I could not remove the rod from the body. Entre'prise might consider having the rod thread into the body so when removed it can be used as a pistol grip screwdriver.
Part is acceptable for most applications.
Since I already had a perfect unit from DSA and another from Young Manufacturing, I cut the rod off, resurfaced the slot, and use it for FAL Paratrooper Model folding butstock screws. The gas regulator wrench is of simple construction and performed fine. It conforms to the FN specification of 2.3mm tooth, although the handle construction is greatly simplified. The bush should be removed with heat and a heavy punch struck downward in a counterclockwise direction. Part performs as advertised.