[CGRifleman]

Does anyone know where I could find an original (or comparable) SKS fixed magazine?

[ChronoCube]

Search on Gunbroker, or go to the various gun forums (esp. SKS boards) and post WTB ads. I'm sure there are lots of people who have converted their SKS's and have leftover fixed mags.

[General Tso]

I have one I took off of my norinco if your interested, pm me your info. You can have it, just pay shipping.

[enbarnes]

I'd like to find an original mag for the Chinese SKS I just bought also. The 30-rounder it has will be a lot of fun but will be kind of hard to shoot from the bench or prone. Any one know of one or have one they don't need?
Thanks!

[JR47]

Check SARCO.

[W L Johnson]

Here ya go
original Chinese
http://stores.polytechparts.com/-strse-564/SKS-5round-Magazine/Detail.bok