I'm not sure if the PAF badge has been copied ... BUT !!! some of the English types most definitely have !!!
As stated though, the "plastic" on these copies shows no age.
Also on original badges (especially the British Para badge, ) I have made a note to look at the reverse of as many originals as possible for the reason that in the production process, the ejector pins in the mold always leave a mark in exactly the same place, and the plastic always forms set patterns under the injection process.
Note the pictures of the PAF badges.
There is a difference in production with a "T1" and "T2" type.
Note the horizontal ejector pin mark on the "T1" type between the ends of the blades for example ...
Also again on the "T1" type ... the hairline raised mark from where the brass prong meets the plastic to the edge.
The backs are the giveaway !!! .. the fronts being perfect to mold face !