Mizuno Pro M-13 Irons Review: A new standard for a legendary iron range
GolfMagic tests Mizuno's latest Pro irons to find out why they might be the company's best ever.
- Incredible Mizuno feel
- Surprisingly forgiving
Even by the Japanese company's already lofty standards, the storied Mizuno Pro range of irons stands clear as the undisputed benchmark for golfing luxury.
When you hear the common quip 'Nothing feels like a Mizuno', these are the clubs that spring to mind, forever setting new standards for pure feel, timeless good looks and craftsmanship. And while Mizuno's best irons are famously timeless in look and playability, it has felt like certain elements of the line had been due a refresh for a little while.
Any new addition to this legendary range is sure to turn heads, and now, Mizuno has given the Pro line its biggest refresh in over a year, debuting two new instalments forming a series it calls the 'Modern' line.
Named the M-13 and the M15, they're intended to succeed 2024's Mizuno Pro 243 and 245 models respectively, bridging the gap between the uber-sleek, player-focused Mizuno Pro 'Signature' line (comprising the S-1 and S-3 irons) and the more forgiveness-oriented JPX 925 Forged, while maintaining the Pro line's traditional look and feel.
The M-13 is the more player-oriented of the two new options, slotting somewhere between a traditional player's iron and a player's distance profile. Additional ball speed and forgiveness are the order of the day with the new M-13 irons, with Mizuno claiming to have unlocked more distance without sacrificing the feel and control players covet the Pro range for.
To put this claim to the test ourselves, GolfMagic hit the course with the new M-13 irons at Quinta do Lago to see how they feel.
Check out our video review below and scroll on to read our detailed thoughts. Let us know what you think of the new range in the comments below, and be sure to check out our review of the Mizuno Pro M-15 irons here.
Brand | Mizuno |
Year launched | 2026 |
RRP | £1440 (4-PW) |
Key Features |
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Looks & features
Get comfy, because the list of tech that's gone into these irons is hefty.
Mizuno's team of Hiroshima-based engineers have combined two materials and three different forging process to create the clubs that make up the Pro M-13 set. The longer irons are made with a process Mizuno calls Pocket Cavity Grain Flow Forged construction, combining an alloy it calls Chromoly 4120 with 431 stainless steel. This has allowed Mizuno to make the face far thinner, unlocking a significant jump in ball speed compared to the Pro 243.
Further down the bag, the 6, 7 and 8 irons are Micro-Slot Grain Flow Forged from a combination of 4115 Chromoly face and 431 Stainless Steel, while 9-iron and wedges are forged from a single piece of 1025 Elite steel for Mizuno's softest, most responsive feel.
All of the irons have seen tweaks to their sole designs to complement this new tech, with Mizuno reshaping the sole and adding bounce to aid turf interaction, while all are tuned with copper underlays and Mizuno’s Harmonic Impact Technology to deliver that soft, crisp sensation that only Mizuno Pro irons deliver.
Looks-wise, Mizuno have maintained the signature aesthetic of the Pro line, with a reshaped mid-line and cavity much more akin to that of the S-3 irons and a small badge stamped into the back of the club denoting its new name. Outside of this, there's not a whole lot to distinguish these clubs from the rest of the Pro range to the naked eye, which is exactly as it should be – however we do think the added model stamp is a bit of an unnecessary add-on when compared to the super clean good looks of the Signature models.
Performance
With the weaker lofts and purer construction, we were expecting the more controlled M-13 to fall away from the M-15 quite a lot in terms of distance and forgiveness. However we were pleasantly surprised to find that the difference in real-world conditions actually wasn't all that drastic. The M-13s certainly aren't quite as long or forgiving as their sibling, particularly as you get towards the longer end of the bag, but the difference is negligible, and generally comes down to a matter of a few yards.
Likewise, while the M-15s are certainly more forgiving than the M-13s, the difference isn't so stark that we'd immediately recommend the M-15 for someone wanting an iron that's drastically easier to hit. What you get in terms of feel and control from the M-13 compared to the M-15, however, puts it streets ahead.
The M-13s feel absolutely gorgeous throughout the set, delivering that trademark soft, responsive Mizuno feel their clubs are legendary for. In fact, we're pretty confident in saying we'll be surprised if we hit a better-feeling club this year.
The M-13s also produced more spin and stopping power with the shorter clubs, which is another tick in their favour for better players who value workability in the approach game.
| Club | Ball speed (Mph) | Spin (RPM) | Carry (Yds) |
| Mizuno Pro M-13 (5-iron) | 107 | 4920 | 150 |
| Mizuno Pro M-15 (5-iron) | 110 | 4734 | 157 |
| Mizuno Pro M-13 (7-iron) | 100 | 5573 | 136 |
| Mizuno Pro M-15 (7-iron) | 99 | 5313 | 135 |
| Mizuno Pro M-13 (9-iron) | 92 | 6584 | 118 |
| Mizuno Pro M-15 (9-iron) | 93 | 7925 | 120 |
Should you buy the Mizuno Pro M-13 Irons?
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Mizuno's Pro M-13 irons are an immediate contender for the very best irons of 2026, and are instantly recommendable for players wanting a workable Mizuno Pro iron that doesn't skimp too much in terms of distance and ease of use.
While the M-13s deliver all the looks and feel Mizuno players flock to the Japanese manufacturer for year-after-year, we were also taken aback at just how forgiving and long the M-13s are, meaning Mizuno have knocked it out of the park in creating a slightly more player-friendly option that'll hit the mark for classically-minded golfers who want forgiveness they can feel, but not necessarily see.
The M-13s are so well-balanced, in fact, that in most cases we'd recommend them over their stablemate, the M-15, with the difference in distance and forgiveness so small that the added feel makes the former simply a far more complete package.
Put simply, if you're a better player and a shiny new set of Mizunos is on your wish list for the 2026 season, this is the model we think you should test first.
Georgina was appointed GolfMagic Equipment Editor in November 2025.