From a post by eerw(Stuart) on 02 February 2014 - 07:52 AM (It won't let me post the link as I'm too new a member here but the thread title is "CZ 75 SP-01 VS SP-01 Shadow" Started by ntphd, Jan 25 2012 06:15 PM in the forum "Brian Enos's Forums... Maku mozo! → Technical → Factory Pistols → CZ):-SP01-firing pin block, std mag release, std ambi safeties, 2 mags, tritium sights
-SP01 Shadow- no firing pin block, 85C trigger, ambi ext safeties, ext mag release, FO front, black rear 3 mags
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I don't know if things have changed in the year since his post, or if his post was subsequently amended.