Cz, all day, everday. a million copiers can't be wrong such as TZ, tangfolio, witness, eaa, smith/wesson,Arcus,ruger sr9(partially),imi, magnum research, jericho, armalite, norinco nz 75, Jsl's, sarsimaz,sphinx, springfield p9,and many others...
Jeff Cooper called it, " the best double action designed pistol available ..." endquote. He was pretty
knowledgeable.