I have a couple of them, I think you should leave it as is.
I don't think that they were a real quality assembly, like most SKS rifles.
So, because of the total lack of parts for them, I wouldn't take the chance of creating any issue's
The reason this model is here Is, they were banned from importation into America ,when Norinco created it to replace the banned AK47 , the ATF said it used an AK47 magazine
There aren't as many as you think here, Australia, New Zealand and parts of Europe received these when it was banned from America