Part of the problem with spare parts is not because this is an old discontinued model - just pure availability as an import. Members of The CZ99 forum (one of the other names of this pistol) have tried to obtain parts and KVAR is not selling. My guess is that whole pistols only are being imported.
I may have to compromise: don't sell until I can find an all metal 9mm with spare parts first. Hard to find one in the same price range.