Mizuno JPX 900 Hot Metal Irons Review

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50 Words or Less

The Mizuno JPX 900 Hot Metal irons are the company’s most impressive set in years.  Very long, easy to hit, and surprisingly attractive.

Introduction

If I were to ask 100 golfers what words came to mind when I said, “Mizuno,” I would expect answers like: forged, blades, feel, soft, players irons.  I doubt one person would say, “Super forgiving distance irons,” but that may change with the release of the JPX 900 Hot Metal irons.

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Looks

The first big surprise about the JPX 900 Hot Metal is the way it looks.  After seeing the last two iterations of the JPX EZ, I was expecting something enormous, but the Hot Metal is one of the best looking SGI irons I’ve seen.  The offset is not too severe, and it’s shaped well.  Similarly, the top line and sole are thick, but not offensively so, and the length of the blade is not extreme.

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Sound & Feel

Surprise number two: the Mizuno JPX 900 Hot Metal sounds and feels good.  This isn’t your “nothing feels like a Mizuno” buttery softness, but relative to other SGI irons, it’s nice.  Impact creates a crisp click that’s not too loud.  As you expect from a super game improvement club, every shot feel smashed, so you’ll need impact tape to know where the face met the ball.

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Performance

Having been fairly impressed with some of Mizuno’s past SGI irons, I can’t say that the JPX 900 Hot Metal’s performance caught me totally off guard, but I was a little surprised by just how good they are.  These are absolutely in the conversation for the most forgiving, longest irons there are.

In my launch monitor testing, I routinely saw smash factors above 1.4.  For an iron, that’s crazy high.  What does that mean?  Ball speed and distance that are at the very top of the game.  To make it even better, that ball speed stays high even when you miss the center of the face.

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Conclusion

If distance and forgiveness are at the top of your wish list, the Mizuno JPX 900 Hot Metal irons should be at the top of your “must try” list this fall.  What makes these irons even more impressive is the way that they blend this extreme performance with quality looks and feel.

Mizuno JPX 900 Hot Metal Irons Price and Specs

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Matt Saternus

Co-Founder, Editor In Chief at PluggedInGolf.com
Matt is a golf instructor, club fitter, and writer living in the northwest suburbs of Chicago. Matt's work has been published in Mulligan Magazine, Chicagoland Golf, South Florida Golf, and other golf media outlets. He's also been a featured speaker in the Online Golf Summit and is a member of Ultimate Golf Advantage's Faculty of Experts.

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52 Comments

  1. I am currently playing a set of Mizuno JPX-EZ irons(105) for the last 4 years. I recently took the ‘Calloway Challenge” at one of our local golf shops. My JPX outperformed the new Calloways(95), though I was left wondering if the variation in the shaft weight and grip size made for a less than ideal test. Afterwards I did some research and found your article about shaft weights. Good stuff, but I digress. Do you think it’s worth giving the Mizuno 900’s a go?

  2. How do these compare looks wise to other GI irons? Similar to the AP 1 and XR? Any smaller?

  3. How do these compare for forgiveness set against the current ( not forged ) JPX EZ.
    .?

  4. Matt, I haven’t tried these yet but strangely enough, my next trip to the golf store was to go through the process of getting fitted for 3 clubs , Callaway APEX CF 16, Mizuno EZ Forged and Ping G. In comparison , should I consider the JPX 900 ?

  5. Hey there! Would you say that these could be compared more directly with Srixon’s z565 Irons, or would you say the JPX900 Forged are more comparable to the z565? If these do compare directly, which would you prefer and why? Love every review that comes from this site!!

  6. What is “SGI” ? Thanks
    While having a grip replaced on my driver, I gave the Hot Metal 6 iron with a Projrct L2 5.5 shaft.
    Your evaluation rang true w me.

  7. Matt,
    I have older Mizuno MX-23 forged irons. Love the feel. I’m looking for more distance with similar feel of these irons.
    Which new Mizuno irons do you recommend?

    • Matt Saternus

      Reino,

      The MX-23’s were great! That was my first “real” set.

      There’s nothing in their current line up that feels like the MX-23 with more distance. If distance is paramount, get the Hot Metal. I’d also recommend taking a look at the new Callaway Big Bertha OS irons.

      Best,

      Matt

  8. Bill Lineberry

    Matt,
    I’ve been playing MP60 with super lite steel shafts since early 2000’s and love them. Last year I had bent to get closer to todays loft. Now that my 32 year old son is beating I’m wondering what iron is out there. I’m partial to Mizuno and the traditional look.

    Thanks Matt

    Bill L.

    • Matt Saternus

      Bill,

      To me, the best players irons right now are the PING iBlade, the Srixon Z 765, and the Callaway Apex.

      Best,

      Matt

      • Michael Haugen

        How do these compare to the Ping I200? I am debating between the two and am a 10 handicap with above average distances. Just need help with the dispersion left and right.

        Thank you – love your page

        • Matt Saternus

          Michael,

          The two irons aren’t in the same class. The i200 is a players iron with good forgiveness, the Hot Metal is a super game improvement club. If you want max forgiveness and length, go with the Hot Metal. As a 10, however, the i200 would be closer to my starting point recommendation.

          Best,

          Matt

  9. Chuck Ward

    I will turn 70 in June and I’m strongly considering the Mizuno Hot Metal irons with a graphite shaft. I have twice tried several makers, Ping, Calloway, etc. The monitors consistently suggest the Mizuno Hot Metals for accuracy and dispersement. Before I pull the plug, do you have any suggestions on what else I should consider. I currently have a set of Ping Eyes Red Dot that are over 30 years old.
    Thank you,
    Chuck Ward

    • Matt Saternus

      Chuck,

      It sounds like you’ve done your due diligence. Assuming you’ve worked with a fitter who has guided this launch monitor testing, I’d say go ahead and pull the trigger.

      Best,

      Matt

  10. Preston Mathis

    Matt… I’ve got a set of Mizuno JPX EZs (2016). Great clubs and I love them but I’m truly interested in the new 900s Hot Metal. How do the two truly compare on forgiveness, ball flights, etc. I tend to hit the ball on the toe end of my EZs. I’m a 13 HC. Really looking for a strong comparison of the two sets I mentioned. Would it be worth the $900 investment for the 900s?

    • Matt Saternus

      Preston,

      The only way to know would be to test them head to head, preferably with the help of a fitter.

      Best,

      Matt

  11. Last yr you tested the Srixon z355. How does this hot metal compare to z355 in distance and accuracy?

    • Matt Saternus

      Ted,

      I haven’t tested them head to head. The best thing to do would be to test to yourself under the supervision of a fitter.

      Best,

      Matt

  12. Hey Matt taylormade m2’s or the JPX 900 hot metals?

    • Matt Saternus

      Trent,

      If you’re forcing me to pick one of those two, I’d say Hot Metals. Given more choices, I’d pick something else entirely.

      Best,

      Matt

  13. matt
    Long time Mizuno guy (play MPH4’s). Looking for a little more distance. Anything you could recommend – Play to a 9 handicap.

    • Matt Saternus

      Scott,

      If distance it the priority and you want to stay with Mizuno, the JPX 900 Hot Metal is what you’re looking for. I’d suggest working with a fitter like Club Champion to get the right shaft.

      Best,

      Matt

  14. In your M2 vs Hot Metal response, you said you’d pick something else if given other choices. What would that be? I play on a course with elevated greens and am looking for a set that will be more forgiving with a high launch. I currently play RSi 2 irons. Replacements being considered with a fitter include the JPX EZs, JPX 900 Hot Metal, G400s, and M2s. What would your recommend as options?

    Thanks – Thomas

  15. Matt I have callaway black razrs looking to buy ether callaway cf 16 or maybe mizuno 900 hot metal what do you think which has the best forgivness

    • Matt Saternus

      Jerry,

      I would suggest comparing them for yourself and seeing what you hit better. If forced to guess, I would say the Mizuno is more forgiving since it’s a much larger iron.

      Best,

      Matt

  16. Sean McAndrew

    Matt,

    I see that you mentioned the G400 by a mile, how about in relation to the GMAX for someone looking for ultimate forgiveness? I don’t necessarily need any distance (tested GMAX and 7/iron was avg 175) but being a weekend warrior who plays with people who golf all week, I appreciate all the help I can get for those frequent thins or off-centered strikes.

    Love your reviews by the way, led me to the GMAX and my new Ping Ketsch Heavy Putter!

    Thank you!

  17. I’ve been playing MP60s for years and love the feel, feedback and workability. However, I’m starting to lose a little distance and having more trouble with the low irons. I’m about a 13-14 right now. Would you recommend the 900 hot metals or 900 forged? What are the differences? Thanks!

  18. Hi Matt, what areas make the G400 your pick “by miles” over the JPX 900? I’m looking at both of those. Many thanks in advance.

    • Matt Saternus

      John,

      I found the G400 more impressive across the board: look, feel, sound, performance. Three of those things are subjective, so you may come to a very different conclusion.

      Best,

      Matt

  19. Hi Matt,

    I’m a relativity high handicap player looking for my first custom, GI fit clubs. I play several times a year, but am looking to get more involved. Do you have any comments comparing the JPX 900 Hot Metals vs Titleist 718 AP1s? I tested the AP1s and they felt pretty good. I’m 26, and my 7-iron distance is about 155. Thanks

    • Matt Saternus

      Mike,

      The Hot Metal will be larger than the AP1 and a bit more forgiving. I think the lofts are stronger also, so they’ll be longer as a result. I would suggest a fitting where you can try lots of different brands – I think there are better options in the GI category.

      Best,

      Matt

  20. Keith Hatch

    Hi Matt, Excellent write-up on the Mizuno jpx 900 hot metal. I have a set 5-pw,gw,sw,lw. These clubs are very forgiving and long as you mentioned. Compared to my Callaway XR OS, they are about a club and a half longer. However the Mizunos are 3 degrees stronger. For those in the market for a new set, these are worth looking at. Getting fitted for these irons is worth the time.

  21. My current irons are jpx hd I was looking to upgrade would the jpx 900 hot metal be an overall upgrade I tend to have a high launch with clubs

    • Matt Saternus

      Brian,

      Moving up one generation in the same clubs usually doesn’t net a huge result unless you’re also moving to a better fitted shaft.

      Best,

      Matt

  22. How do these fair compared to Callaway Rogue irons? Thanks!

  23. Gordon Shepherd

    Do not think these clubs live up to the hype. Distance for me lacks. You could not hit them and go wow, they are average. Seems to be a lack of balance between shaft and head. For £740 I would have expected more. Like length and feel. Think I paid to much for them. Just feel there is something not right about them. See they are on sale now. Bit gutted. Going to try other clubs for comparison.

  24. I have Ping G5 and looking at these Mizuno JPX 900 Hot Metals. How much of an upgrade? G5 distance seems short.

    • Matt Saternus

      Todd,

      The JPX 900 Hot Metal are quite a big newer and have stronger lofts than the G5, so it’s very likely you will hit them farther.

      Best,

      Matt

  25. I recently traded my JPX 850 set in and thought for sure I’d but the new JPX 919. I tried the JPX 900 side by side with the 919 and the 900 hit every bit as good. I also hit the 900 vs the Callaway Rogue X irons, and ultimately bought the Rogue X. But I couldn’t stop thinking about the 900’s. I use graphite shafts BTW. Long story I went back and got the 900 in graphite for $429! Golf Galaxy always takes care of me. But what I can’t figure out is why am I hitting the 900 further than the super long Rogue X? About 5 yards on average.

    • Matt Saternus

      Todd,

      The JPX 900 Hot Metals have very strong lofts, similar to the Rogue X, but the heads and shafts must be a better fit for your swing. This is why we always emphasize the importance of being fit.

      Best,

      Matt

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