Mizuno MP 25 Review

Mizuno MP-25 Review
John Scott
4.9/5 stars

Pros and Cons of the Mizuno MP-25 Irons

I get very excited when reviewing Mizuno products. I have been playing the MP-32 irons for over 10 years. What I have found with Mizuno is that the material they use and the forging process gives their clubs the softest feel of any forged club on the market today. The “Grain Flow Forging” process is the key to their being so soft. The Mizuno MP series has embraced the infusion of Boron into their forging process which has made them softer yet. This is the feature that made the Mizuno JPX 850 irons such a hit last year. Boron is lighter and allows the face to be thinner and more responsive.

The MP 25’s have the largest cavity back in the MP line. They are a little easier to hit than previous MP irons as they are more forgiving directionally with added ball speed giving increased distance. Micro-Slot technology helps in the area of forgiveness on off-center hits as well as increased ball speed.

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Here are the key technologies in the Mizuno MP-25 irons:

  • Grain Flow Forged 1025 Boron:  30% stronger material for added distance while delivering soft, solid, consistent feel.
  • Micro Slot Technology (#3 – #6):Milling the head from the sole up creates a Micro-slot that activates the strength of the 1025 Boron material for added distance and increased forgiveness.
  • Solid 1025 Boron Muscle Design (#7 – PW):  Enhanced feel and shot making manuverability.


In keeping with tried and true Mizuno technology, the Grain Flow Forgings are substantially stronger giving them added distance. Micro-Slots are active on the 3 – 6 iron which also adds more ball speed. It is difficult to milk extra yards out of a players club like this, so kudos to Mizuno for doing just that.

Mizuno: The Art of Forging

Materials of Construction

When it comes to materials, Mizuno hits it out of the park. The Grain Flow Forging carbon steel has been improved upon with the infusion of Boron into the process. The result is a lighter, thinner face.


Mizuno MP series of irons have always been the best clubs that have been at the top of the list when it comes to feel. I can tell you from my own experience that the feel with Mizuno irons is unmistakable. When you hit the middle of the sweet spot, you can’t even feel the ball coming off the face. When you mishit you know immediately…and it is not a bad feeling. It’s just that you feel it and know you did something wrong. That, my friends, is what feel is all about. And that is exactly what you will get from the MP-25’s.


Although the MP series of irons have never been considered to be a forgiving club, the MST (Micro-Slot Technology) on the 3 – 7 irons does offer some measure of forgiveness in that miss hits are not drastically affected distance wise.


The all-around look of the Mizuno MP-25 irons is nothing short of spectacular. The mild cavity back is almost hidden when looking down at address. The topline, while not thin, is pleasing to the eye. The narrow sole almost begs to be put into attack mode.

Custom fitting options

Custom fitting is a must when it comes to the Mizuno MP series. They are so soft that getting the lie angle right is a foregone conclusion. Whether it be longer shafts, different grips or even a shaft upgrade, Mizuno will do everything possible to get golfers exactly what they want.




  • Available in right and left-handed
  • Project X shafts 5.5-regular, stiff and X-stiff
  • Only 3 – PW available

Official Video:


Playability: The top-rated iron tested; small clubhead, nimble sole which delivers a crisp strike easier than most irons in its class. Penetrating ball flight is great into the wind.
Accuracy/Forgiveness: Right from half wedge shots all the way through full 3 iron strikes, consistent swings are rewarded as they should be. Off-center hits are not punished as much as previous MP irons.
Distance Control: Top in its class; longer than previous MP irons

Feel: The best, and it’s not even close; solid strikes are just like a hot knife going through butter. Feedback on miss hits is exactly what you want.
Look: Superior. Classic Mizuno from the top on down. Looks like a blade…plays like a blade, but with some forgiveness.


This club is a little more difficult to play from the rough. You can’t mess around with a ¾ swing at all. You have to go and get it.

Having certain materials or head designs in one part of the set and not another may be an issue.

Are These Clubs for You?

Even though the Mizuno MP-25 is designed for better ball strikers, I would love it if players of all levels could play them at least for a round or two. The reason I say this is that the feel that the MP-25 gives to a player is something that everyone should experience. Just so they understand exactly what feedback really feels like. Having said that, it is unreasonable to expect mid to high handicappers to be able to reap the performance benefits from this iron.

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About the author

John Scott

John Scott is a 3 hcp elite golfer and certified club fitter, with over 40 years of golf experience. He is a former Club Champion at Priddis Greens, 2 times Champion of Chinook Valley Mens Open, former Alberta Interclub Champion, and a professional golf writer.