It is modelled against several references of the real thing and in the high adjust position.

I think I mentioned this is the first generation optic (distingished at first glance by the single band round the rear eye piece) earlier. Later versions have a raised frontispiece, double banded rear housing, accenuated sight supports, single mid adjuster, seperated inner sight function, oversized rear screw and double coated rubberised central housing. Having trained on both generations of the optic I can say it's about right for a first generation, which is what i set about modelling, but who knows. I am happy enough with it.