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Mizuno Men's JPX 900 Hot Metal Irons

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Mizuno Men's JPX 900 Hot Metal Irons

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    Project X LZ Graphite
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Mizuno Men's JPX 900 Hot Metal Irons

Longer, Hotter Irons To Appeal To More Golfers

Highlighting the design of the JPX 900 Hot Metal irons is the use of Chromoly 4140M, a completely new material being used by Mizuno in the creation of golf clubs. Chromoly is incredibly strong and allows for the Hot Metal irons to be constructed using a one-piece face cup, which leads to incredible ball speeds. In fact, the COR for these irons is 0.83, which is the USGA’s legal limit for a driver. At the same time, however, Chromoly is soft enough that players can still adjust loft and lie angle to their ideal specs, just as they would be able to do with a forged iron. Mizuno’s Power Frame, meanwhile, moves mass to the perimeter of the clubhead to improve forgiveness on mis-hits while also improving sound and feel at impact. And what might be most impressive about the Hot Metal irons is that all of the aforementioned technology and playability has been packed into an iron that has a more compact, elegant appearance than many game-improvement offerings on the market today. The stock shaft options for the JPX 900 Hot Metal irons are the Project X LZ 4.5 in graphite and Nippon NS Pro Modus 105 in steel, but other custom options are available at no upcharge for those who need a different profile.


Stock Shaft Project X LZ 4.5 Graphite, Nippon NS Pro Modus 105 Steel
Stock Grip Golf Pride Multicompound Blue/Black, .60 Round
Click the Enter Custom Specs tab above for custom shaft & grip options

Ideal For:

Golfers of all ability levels. The JPX 900 Hot Metal is unquestionably a game-improvement iron and the impressive distance it generates and maximum forgiveness it provides are certain to appeal to high- and mid-handicap players. That said, this is an iron that still has a clean, compact look at address, which will likely to appeal to lower-handicappers who might be in need of a few more yards and higher launch conditions. For all of those reasons, the Hot Metal is likely to be the iron of choice for players with very different playing profiles, and it’s also a strong candidate to be utilized in the longer irons of combo sets.

Chromoly 4140M

This extremely strong and light material enables a thin, hot clubface for explosive ball speeds and enhanced distance.

Chromoly 4140M

Power Frame

Mass moved to the corners of the clubhead enhances stability and a reinforced top line produces improved acoustics at impact.

Power Frame

Unitized Face Cup Technology

A one-piece construction allows for a lower CG placement that creates a larger sweet spot and higher MOI.

Unitized Face Cup Technology

What Players Like You Are Saying...

“I really didn’t mind looking down at it and after seeing the way it performed it made it even better. It was very forgiving, which is great for any player, and I could hit any kind of shot with it.”

TGW customer Jay, +4 handicap

“It didn’t look like a game-improvement club looking down at it. They really hid the cavity well. It was hot.”

TGW customer Jordan, 7 handicap

Mizuno Men's JPX 900 Hot Metal Irons
Club Loft Length Lie Angle Offset Bounce
#4 21° 38.25" 60° 0.230”
#5 24° 37.75" 60.5° 0.211”
#6 27°


61° 0.191”
#7 31° 36.75" 61.5° 0.179” 1.5º
#8 35° 36.25" 62° 0.169” 2.5º
#9 40° 35.75" 62.5° 0.148” 3.5º
PW 45° 35.5" 63° 0.128”
GW 50° 35.25" 63° 0.118”
SW 55° 35.25" 63° 0.118” 13º
Mizuno Men's JPX 900 Hot Metal Irons is rated 4.8 out of 5 by 8.
Rated 5 out of 5 by from Solid club Mizuno makes great irons. Period. TGW got me a great set quick and I'm glad I bought them. After a little tweaking and bending, the strike is solid and pure. Instant game improvement for me as I'm hitting a lot more of the small greens at my club.
Date published: 2018-03-09
Rated 5 out of 5 by from No real distance or direction lost on miss hits. Bought couple months back really like only wish Mizuno woods be this good
Date published: 2017-12-24
Rated 5 out of 5 by from Long, forgiving, and very controllable! I just switched to these (4 iron through GW) from a set of Callaway Steelhead XR irons. These are absolutely as long as the Callaways, but far more controllable and without the obnoxious loud crack. The feel is softer in the Mizunos, and they actually stop when you want them to compared to the Callaways. I would absolutely recommend these over any other game improvement iron out there, and believe me I've hit em all. I've never been able to hit a 4 iron as well as I hit the one in this set. I only have about an 85 mph swing speed with my irons yet I can hit this 4 iron 200 yards consistently with accuracy.
Date published: 2017-08-20
Rated 5 out of 5 by from Compact game improvement iron An excellent feeling club with a player's club profile Excellent stock grip and a terrific feeling Nippon shaft A great club for a player in the 3-15 handicap range
Date published: 2017-07-05
Rated 5 out of 5 by from Don't tell your Buddies... 7 trips to the range & 3 rounds. So let's talk... The 'Hot Metal' irons are the best rated irons on the 2017 hot list. In every single category except 'Demand'... let that sink in... I'm not going to tell you they will make you a better lover, or make your significant other prettier. If you want to get better & hit the ball cleaner/ longer, get lessons AND practice! But I will say that somehow Mizuno has made a iron with cast forgiveness/distance WITH forged sound and feel.... Get fitted & get these irons. Just don't tell your friends... lol Ok, one thing on distance. I don't know what Mizuno put in those 4, 5 irons, but I'm pretty sure if they had a urinalysis, they would be suspended....
Date published: 2017-05-14
Rated 5 out of 5 by from Great weapons I love how its head contacts the ball and how my hands feel from it. Great distance, yet great forgiveness.
Date published: 2017-04-19
Rated 5 out of 5 by from Beautiful iron with great feel and distance I have played many irons in the last couple of years: Titleist AP1s, Wilson C200, Taylormade RSI, JPX 825s but these outperform all. I switch back and forth between my Titleist AP1 714 and the JPX 900 hot metal because i keep a set in my car and my wife's car. These irons were 5+ yards longer but more importantly the dispersion is much better
Date published: 2016-11-23
Rated 3 out of 5 by from Looking for extra distance. I have played several rounds with Mizuno 900 JPX irons and they are at least one iron shorter in distance that my 5 year old Cobra S9s.
Date published: 2016-11-07
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