Post by Mark
Hi Michalive,
Welcome to the forums!
Well, I have one of the Marushin Uzi's myself and they are cool modelguns. I think that the sling swivel will work off of an actual Uzi if you can find one as they are both metric sized.
But, I think that the actual Uzi's sling swivel is rivited on the side of the pressed steel receiver so, I am not sure that you can find one that is seperate.
I am not sure that the actual Uzi magazines will fit as I haven't tried them myself but they might..
The stock assembly should fit. Do you have the folding stock?