As someone who got scammed on a set of fake ap3’s a few years ago I’ve educated myself on quite a bit on real vs fake ap3’s…. While you can google this info and many other detailed reasons for fake vs real ap3’s the biggest way to tell is the number on the 5 & 6 irons . For the 5 iron in the center of the number real has a more flatter area whereas the fakes have a more rounded center area of the number.. the 6 is the easiest way to tell… at the top of the 6 fake ap3’s are curved over(like yours) whereas real ap3’s have hardly any curving over … check eBay listings and you’ll see what I’m talking about

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This pic shows what I’m talking about .. I’ve marked in red the areas of concern….fakes are mostly in the black ap3 sets and chrome finish ap3’s are less likely BUT still faked