Outside of a slightly heavier, adjusted, barrel, an adjustable cheek piece on the stock, and scope rails, it's pretty well just a G3A3, no? Although it still does manage to top the field in terms of military capable semi-automatic sniper rifles.I've stated my view on the PSG-1 before, and will do so again:
It's nice for urban situations, and to show off on the firing range, but it's way too heavy for military field-use, and it is a bit sensitive to dirt etc(Nowhere near as sensitive as anything based on the Stoner design, but still sensitive). The MSG-90 would be a far better choice.