You didn't get night sights? It also looks like the stock was replaced as it doesn't quite match the finish of the handguard.
Is it a D or very early E series S/N? Those M59/66's (as opposed to the upgraded M59/66A1 or M59/66A2s) are very few and far between and actually quite desirable, especially in good condition.
I'm pretty sure that the other 2 common variants are floating around in Canada in minuscule numbers. If you look really hard you can find them, but they are pretty pricey if you do find them!