actually, CZ gave me one (once they realized that this is NOT a kadet recoil spring but one that looks like a full sized recoil spring and that they do not offer it yet for replacement). so strange . they are a much better company than that . really dropped the ball on this and hopefully, soon, they make the right recoil soring and rod available. MY SP-01 kadet is AWESOME. BOUGHT IT FROM czc MATCHED TO A FRAME ALREADY NO EXTRA SPRINGS INCLUDED.
i MEASURED THE SPRING WIRE THICKNESS,LENGTH, INSIDE AD OUtsid e diameter of the original spring. I bought some music wire springs with dimensions that matched. So I have some untried springs that I can cut to length( measured against the new spring CZ Cs sent me).