MacGregor M59 Game Improver Irons Review Last updated: 26 November 2015 At a glance TG Rating Not yet rated Owner Rating Not yet rated What we say... MacGregor are back with a bang, and their new M59 irons feature a thinner face and refined topline for more distance and confidence at address. The black chrome version looks great too. £350 (steel) and £460 (graphite) Product Information Left Handed available Custom-Fit availableNo Lofts Forgiveness levelHigh Graphite shafts availableYes Iron typeCavity OffsetModerate Your Reviews Macgregor Irons User Reviews