doesnt a some chinese SkS have that removable magazine?
the SKS/M was designed to take AK47 mags. a number of conversions are out there to allow SKS to use a proprietary detachable magazine as well however as stated, stripper clips are faster in the long run.
a little update on my post. I finally shot my SKS, ringing 200 meter oxygen tanks with almost boring precision once I got it dialed in with new Tech Sights Apertures. when I made my earlier post in this thread I had no idea that there was an aperture system available for the SKS but I sure am glad I bought them.