Hmm, I can make Savage Mark II mags fit and work in my JW-25A using nothing but crazy glue, some plastic from a pop bottle lid and a piece of a small finishing nail. (Because nobody has the Norinco mags and metal CZ 452 mags are 2X the price of the Savage ones.) 
There has to be ~something~ out there more commonly available that fits or can be made to work. The last resort would be to somehow change the mag well itself to accept something more common....
There has to be ~something~ out there more commonly available that fits or can be made to work. The last resort would be to somehow change the mag well itself to accept something more common....