I've been told(dont know if its true, neither the guy who told me) that Cz produced originally 15 round magazines for Kadet...
Has anyone heard about that?
Has anyone knows, or even tried to modify a mag to hold more rounds? Is it possible to build a double column for a .22(seems hard, since the rim of the cartridge is too large)? Here we have not the hi cap ban...

(but its hard to get a license to calibers larger than .25ACP or .32s(revolver)
Thank you