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New and Used Mizuno JPX 921 Hot Metal Pro Iron Set Golf Clubs


Certified Preowned
JPX 921 Hot Metal Pro
Player Type
Clubs Type
4-PW, AW Iron Set
Right Hand
Lie Angle
Project X LZ 115 5.5 Steel
Has Headcover
Has Tool
Shaft Material
Have a Question? Ask a PGA Professional

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JPX 921 Hot Metal irons integrate Mizuno''s fastest ball speeds with a piercing, straight ball flight and controllable landing angles. Featuring the 3rd generation of resilient Chromoly technology, the JPX 921 HM utilizes the most complex face geometry to date to provide additional energy. Hot Metal Pro features a more compact profile and reduced offset.

Certified Preowned

Buying pre-owned clubs is a great way get clubs in your bag without having to pay the full price of a brand new club. At GlobalGolf, we bring peace of mind to the buying process by offering a unique club condition, GlobalGolf Certified Preowned.

Each Certified Preowned club goes through a certification process by our trained professionals. The certification process includes:
  • Complete 6 - Point Inspection Process
  • Thorough Cleaning
  • Twelve - Month Limited Warranty
  • Thorough Cleaning
  • Visual Inspection
GlobalGolf Certified Preowned 6 - Point Inspection Process covers the clubs from grip to sole, ensuring that the club(s) you purchase have been properly maintained and are in the best possible condition before making their way into your bag. The Twelve-Month Limited Warranty protects your club against all manufacturing defects in materials and workmanship. If your club is found to have a factory defect, our commitment is to promptly replace it or issue a credit for the full amount. No questions asked.

Learn More About Certified Preowned Here.


  • Faster and Faster Chromoly 4140M - 3rd generation Chromoly has now been taken to its limits. A re-engineered CORTECH face is 0.2mm thinner across the center.
  • Seamless Cup Face - New variable thickness sole design lets the leading edge act as a hinge for greater face flex and ball speeds.
  • Harmonic Impact - A more solid sensation derived from predicting vibration patterns that dictated 3 additional sound ribs.
  • Pearl Brush Finish - Anti-glare minimizes distractions over the ball.
  • Stability Frame - Additional perimeter weighting with toe bias for stability from off center ball strikes.


Displaying 2 out of 2 Questions.

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Is the shaft flex 5.5 or 5.0? Thanks
asked by Andy L. on 2/23/2022
5.0 will be listed as senior, 5.5 regular.
Rudi Fann, PGA Professional
answered on 2/24/2022
what is the make and model of the grips?
asked by R. v. S. on 6/27/2021
Unfortunately, due to the size of our inventory, we are unable to verify specific grips on a used set of clubs.
Rudi Fann, PGA Professional
answered on 6/29/2021

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Customer Reviews

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Beauty and the Beast
By Allen M. on 1/30/2021
16 out of 18 people found this review helpful.
Handicap: 11-15  Plays Golf: I play monthly  Dexterity: Right Hand

This is my first experience with Mizuno irons. First of all these clubs are beautiful. The aesthetics are stunning and screams of great quality and craftsmanship. They are a beast on the course, long and strong. I love the black PX shafts in mine; makes these irons very powerful.

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Completely Satisfied
By Darrell D. on 9/13/2021
5 out of 6 people found this review helpful.

I got these Mizuno Hot Metal Pro irons in Certified Used condition for a great price. They arrived quickly and they are essentially brand new. The black shafts look awesome! I'm a pretty high handicapper but I wanted some decent clubs because I intend to start working on my game. I've played with them a few times now and the increased distance due to the adjusted lofts is obvious. They sound good, look good, and have improved my accuracy a bit already.

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Great looks outstanding performance
By Kris M on 5/25/2021
4 out of 4 people found this review helpful.
Handicap: 0-5  Plays Golf: I play weekly  Dexterity: Right Hand

I spent some time this year researching my new irons. I demo'd a bunch of different models and these were the best combination of looks and performance. They still look fairly small and don't have a huge amount of offset so they tick all the boxes for me and they flat out perform. The ball launches nice and high and distance is perfect. I did have to adjust a bit in terms of club/distance but that is primarily due to the loft of these being quite different from my last set.

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Good transaction, quick turnaround
By Derek P. on 5/23/2022
1 out of 1 people found this review helpful.

Received my set of mizuno’s very quickly . They were exactly what I ordered shipped safely and quickly . In perfect condition . I’m enjoying the purchase and later bought a used driver which was in better condition than described . Research and purchase, works well

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Clubs for a High Handicapper
By Don D on 12/22/2022
0 out of 0 people found this review helpful.
Handicap: 21+  Plays Golf: I play monthly  Dexterity: Right Hand

Got these new clubs as they are forgiving as a new player who doesn't always hit it in the sweet spot. Hoping that they'll help me grow as a player.

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Technology / Specs

JPX 921 Hot Metal Pro Face

Chromoly 4140M Base Maximizes Speed

Now in its 3rd iteration, the re-imagined CORTECH face technology on the JPX 921 Hot Metal Pro irons has been stretched to its limit for maximum distance and speed, all while having a 0.2mm thinner center point.

JPX 921 Hot Metal Pro Sole

New Face Design for Smoother, More Solid Contact

The JPX 921 Hot Metal Pro irons were crafted with a new thickness and sole design, allowing the leading edge of the club to operate in a more hinge-like motion, producing more ball speed and flex in the face. The JPX 921 Hot Metal Pro irons were also specifically designed to have a tighter profile with reduced offset.

JPX 921 Hot Metal Pro Toe

New, More Stable Frame

With additional perimeter weighting, the new JPX 921 Hot Metal Pro irons have increased toe bias, further making off-center strikes more accurate.

JPX 921 Hot Metal Pro Sound

Crisp, Solid Sound

The JPX 921 Hot Metal Pro irons have been crafted with 3 additional vibration detecting ribs, producing a cleaner, more solid sound at impact.

JPX 921 Hot Metal Pro Finish

Brushed with a Pearl Finish

The pearl finish on the new JPX 921 Hot Metal Pro irons reduces glare at address, minimizing any distractions that may be seen when addressing the ball.

JPX 921 Hot Metal Pro Irons Options

Club Dexterity Loft Lie Angle Offset Length
4 iron RH 19° 60 0.15 38.5"
5 iron RH 22° 60.5 0.142 38"
6 iron RH 25° 61 0.134 37.5"
7 iron RH 29° 61.5 0.126 37"
8 iron RH 34° 62 0.118 36.5"
9 iron RH 39° 62.5 0.11 36"
PW RH 44° 63 0.102 35.5"
GW RH 49° 63 0.134 35.25"

JPX 921 Hot Metal Pro Irons Shaft Options

Shaft Name Shaft Flex Shaft Weight
Project X LZ Blackout 5.5 - 115g

JPX 921 Hot Metal Pro Irons Grip Options

Grip Brand and Model Grip Size Grip Color
Lamkin ST Hybrid Standard Black/Grey
adidas Bridgestone Golf Callaway Cleveland Cobra FootJoy Mizuno Nike Ping Puma Srixon TaylorMade Titleist Wilson adidas Bridgestone Golf Callaway Cleveland Cobra FootJoy Mizuno Nike Ping Puma Srixon TaylorMade Titleist Wilson

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These are your UTry® selections. Only UTry® eligible products appear here. 2 product limit.

Our UTry® program gives you the opportunity to try out brand new products from the game's top brands for 14 days for only $25, or $100 for an iron set. That's right—you get a brand new, still-in-the-plastic club to try for two weeks for just $25.

You get to try it when, where, and how you want for two weeks before deciding if you want to buy it or not.

Want to test out two different brands, or two different configurations? No problem. UTry® lets you try out up to 2 products for $25 per product or 1 iron set for $100.

This isn't 30 minutes on the range with range balls or looking out of the Pro-Shop window. You can try the product on your time, when & where you want.

UTry® gives you the freedom to take Golf Clubs, GPS or Rangefinders to your course and to use at your pace! Use it as much as you like so you can really know what the product will do for your game before you invest in it.

If you don't love it, simply put it back in the box it came in, use the included prepaid return shipping label, and send it back to us. That's it.

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