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Mizuno Pro 243 Irons Review

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The Mizuno Pro 243 irons have the looks of a player’s iron without the demands of a true blade.  The grain flow forged cavity back irons deliver high ball speeds and mid spin for those single digit handicaps who need just a bit more help.


Mizuno Golf has built an impressive reputation over the years by crafting some of the most sought after irons on the market.  This is largely because of their unique grain flow forging process which produces that feel that players love.  For 2024, Mizuno has updated the Pro Series irons in line with their two year release cycle and we got our hands on a set to test.  In this review, we put the Mizuno Pro 243 irons through the paces to see just how these stack up.


The first time I got my hands on the Mizuno Pro 243 irons, I was pleased with the simple looks.  They are compact, small from heel to toe, and resemble something closer to a muscle back than a player’s cavity back iron.  At address, the leading edge has a gentle curve to it with a rounded toe and thin top line.  According to Mizuno, the top line is thinner than its previous version in the 223 [review HERE].

In the bag, the sole appears slightly wider than in previous versions with Mizuno’s distinct tall white numbers etched into the toe.  The back has a uniform brushed chrome finish with only a naked Mizuno logo towards the sole and “Mizuno Pro” etched in white inside the cavity.  Less is more in iron design, and Mizuno put that into practice with the Pro 243.

Sound and Feel

Despite the forging material changes for 2024, sound and feel remained mostly unchanged.  All I needed was a few swings to remember that “nothing feels like a Mizuno.”  Any good to great strike with the Mizuno Pro 243 irons deliver a pleasant “tick” sound at impact.  My fitter at Club Champion noted just by the sound that I was striking them right on the screws.  This was not a product of suddenly becoming Tiger Woods, but a result of the sound with almost any decent contact.

The feel was just as good as the sound.  It felt like I was hitting a super soft golf ball, which I enjoyed.  It’s not so squishy like a marshmallow but definitely soft.  Once I finally missed one, I knew it as there was more vibration sent through the grip and hands while the ball felt more like a rock.  Surprisingly, this feel on mishits was few and far between because of an enlarged sweet spot.


The Mizuno Pro 243 irons are essentially two sets of irons packaged into one.  The gap wedge through the eight iron are relatively unchanged from previous years in terms of forging processes.  Each one of these scoring irons is forged with Mizuno’s traditional 1025E carbon steel.  The four through seven irons, however, are grain flow forged with 4120 Chromoly and built with a micro slot to create better ball speeds.  This is all new for 2024 and is ideal for those players who still prefer precision in the scoring irons but need a little more ease in getting both appropriate distance and launch from those tougher to hit long irons.

Mizuno did an incredible job in designing this set and allowing forgiveness to be added gradually as you go down in loft.  For the scoring irons, I had total control.  While the stronger lofts brought my ball flight and spin down slightly, they were still workable to almost any type of shot I wanted to hit.  This created a more consistent dispersion pattern as I reduced the high spinning outliers.  The newly increased bounce angle and trailing edge relief also made turf interactions foolproof.

While I would still suggest these are not quite as a forgiving as a game improvement club like the Pro 245 irons, the changes for 2024 are markedly more forgiving than previous versions of this iron.  They are also significantly easier to hit than the Pro 241 irons [review HERE].

The 4-7 irons are where I noticed the most impressive numbers and where the Mizuno Pro 243 irons shine.  Like the scoring irons, the long irons saw an increase in bounce angle and sole relief, but the micro slot and 4120 Chromoly is what separates itself from its competition.  Ball speeds for these longer irons were higher than I was accustomed to but still remained consistent without the fear of nuking a flyer over a green.  The launch was mid to high with relatively low spin.  As a higher spin player, this is exactly what I love in these longer irons.  The magic here is that all of this is inside a compact head with minimal offset.

You can see from the chart below that the Mizuno Pro 243 irons have stronger lofts than both the 241 and the previous Pro 223 irons.  While this can make it more difficult to create a mixed set of Mizuno Pro irons, the Mizuno Pro 243 irons have enough variety and gradual forgiveness that it feels like a blended set on its own.


There is a lot to like in the Mizuno Pro 243 irons.  The mix of workable scoring irons with a more forgiving group of mid to long irons is ideal for the better player.  This is all inside a small, compact iron that produces a feel synonymous with Mizuno irons.  It’s a must try for better players in 2024.

Visit Mizuno Golf HERE

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Mizuno Pro 243 Irons Price & Specs

Zack Buechner
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  1. Bobby Baltimore

    Great review Zach!

    • Zack Buechner

      Thanks Bobby!

      • Your opinion for combo set.
        Iron 4 & 5 – Mizuno Pro 245
        Iron 6 & 7 – Mizuno Pro 243
        Iron 8 to P – Mizuno Pro 241

        • Zack Buechner

          I’m assuming this is tongue in cheek but in case it’s not, a combo set with all three versions doesn’t make much sense.

          If you’re a good enough ball striker to handle the 241 irons in the scoring clubs, then why would you need such game improvement qualities in your long irons? Each of these sets is geared towards different types of golfers with different needs and is why it’s so important to get fit.



  2. Anonymous

    Thoughts on blended the 243 and 245, ie 245 in the 4&5 iron?

  3. Thoughts on blending in the 245 in the longer irons? Ie 4&5 iron

    • Zack Buechner

      Hey John,

      I actually tested this during my fitting and due to the Chromoly and micro slot tech in the longer irons, there was no performance benefit in adding the 245s in the long irons as a blended set.



  4. Thanks Zack…got fitted for these a few months ago and havent looked back….tried the 241 and the 245 and these suited my game.

    Super review..

  5. I have the 223s which are great. Have you hit them and if so, how do they compare to the 243s?

  6. Zach, did you mean the Pro 243 is a huge step forward in forgiveness even from its immediate predecessor Pro 223 or only from Mizuno MP cavity back irons in many years past? Thanks.

    • Zack Buechner


      The short answer is both. The 223s also had a micro slot and Chromoly but Mizuno expanded the micro slot in the 243s and increased its bounce angle leading to stronger lofts. All of this combined created a marked improvement over the 223 irons.

      The MP20 line (specifically the MMCs) is closer to a blade in terms of forging all the way through the set without forgiving features like the micro slot and wider bounce angles which are seen in the 243s.

      Hope this helps!


  7. Tee Lassar

    Seriously, how much more forgiving, better, or different from the previous iteration, the 223 are these ? And on what evidence do you base your opinion

    • Zack Buechner


      Both the review and my comment to Stanley above highlight the differences from the 223s. With all of that said, I strongly suggest getting fit if you’re looking to upgrade to the 243s.

      Thanks for reading,


  8. Tee Lassar

    Again–not sure what you mean by “marked improvement” over the 223’s. On the basis of WHAT?

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