Rifletech makes a guaranteed to work detach but they are over 60 bucks per mag and not worth it since they are just modififed USA mags. Down the road they will most likely mess up if they do anything with the feed lips.
Stick with the fixed 10rd that it came with. Even teh 20rd Fixed ones from china are crap and jam all the time. Not as much as a detach but still too much to be worth it.
You may want to save up and buy the Norinco SKS made to take AK mags instead. I see them go for 350-400 like new all the time on Gunbroker or Auctionarms.
Stick with the fixed 10rd that it came with. Even teh 20rd Fixed ones from china are crap and jam all the time. Not as much as a detach but still too much to be worth it.
You may want to save up and buy the Norinco SKS made to take AK mags instead. I see them go for 350-400 like new all the time on Gunbroker or Auctionarms.