A clear evolution of the former 5 Series model the AF-506 packs a ton of game improvement in a 1-piece forged design. Similar to the previous AF-505 model, the construction features the thinnest face of any 1-piece billet forged golf club in the world at 2.3mm. Additionally, the lie, loft and offset are also the same as the AF-505. However, a slightly wider blade, a wider center sole and the significantly larger “caved cavity” provides a 27% larger sweet spot making it the ultimate in shot shaping and forgiveness.