Mizuno MX irons were Mizuno's numbered line of game improvement and mid handicap irons, sold from the early 2000s until about 2010, sitting below the MP blades and players cavity backs. The line mixed cast and forged models, so an MX-17 and an MX-25 can feel quite different even though they share a name. Because so many were sold, MX irons still turn up regularly as single irons and full sets on the used market.
How the MX models differ
The numbering does not run neatly by year. Cast models like the MX-15 (2003), MX-17 (2005), MX-19 (2007) and MX-100 (2009) were aimed at players who wanted more forgiveness. Forged models included the MX-23 (2004), MX-25 (2007), MX-900 (2006), MX-950 (2008), MX-200 and MX-300 (2010 model year). The MX-25 used what Mizuno called Y-Tune, which extended the sweet area toward the toe, and Mizuno reported it was about five yards longer on center strikes than the model before it. The MX-100 and MX-200 were tuned using Mizuno's frequency analysis work on vibration, the same process used on the MP-52 and MP-62 that year.
The last MX irons
Mizuno launched the MX-300 and MX-1000 in October 2009. The MX-300 was a forged iron for low and mid handicappers who wanted a traditional head shape, with a milled pocket cavity in the 3 through 7 irons and a solid bar design in the 8 iron through pitching wedge. The MX-1000 went the other way, using hollow construction and a Hot Metal face for a premium game improvement club. After that, Mizuno's game improvement and players distance irons moved to the JPX name, and the MX numbers stopped appearing on new models.
Common questions
Are Mizuno MX irons forged?
Some are and some are not. The MX-23, MX-25, MX-300, MX-900 and MX-950 are forged, while the MX-15, MX-17, MX-19 and MX-100 are cast.
Who are MX irons good for?
Most MX models suit mid to high handicap players who want forgiveness at a used price. The MX-300 and the forged cavity backs are a better fit for players who want a smaller head and softer feel.
If you are looking for a replacement iron or a full set, you can browse our used Mizuno single irons, where most of our MX listings sit. To see how Mizuno's forging approach carried into the line that followed, read our post on Mizuno JPX irons and what Grain Flow Forged means.
