I will soon be acquiring an Arsenal saiga rifle with the Monte Carlo buttstock. I am confused by the compliance issues. Does the gun as it comes from the factory have too many foreign parts to be compliant if I change something and trigger 922r or whatever it is called?? Am I correct in understanding that if I use a 30 round american made clip it is no longer a "sporting rifle" and triggers 922? And I have seen on the website selling the clips that it counts as 3 parts. What the heck? I guess I would like to change the rifle to a buttstock with a pistol grip and use the 30 round clips.