Mizuno JPX923 Forged Touring Irons S23 Wedges

Mizuno’s JPX923 rounds feature a brass core

Mizuno Golf

The Mizuno JPX923 Forged (4-GW) is available in February in both right-hand and left-hand versions for $187.50 per club. The JPX923 (4-GW) round is right hand only and retails for $187.50 per club.


After much anticipation and excitement, Mizuno has officially unveiled the all-new JPX923 Forged and Tour irons, which are designed to push the boundaries of materials, tolerances, and precision shot-making at the touring level.

New round and forged irons complete the Mizuno JPX923 iron lineup, which offers the most comprehensive mounting program ever.

Mizuno JPX923 irons are forged and round

Mizuno Golf

“The new JPX923 series was planned with Mizuno’s custom ethos at its core. We already offer over 50 unique bars within our custom software, by expanding to five iron models, there is the perfect combination for every type of player.”
—David Llewellyn, Mizuno’s director of research and development

JPX923 forged

Mizuno JPX923 is forged

Mizuno Golf

When most golfers think of Mizuno, they think of forged irons, and when Mizuno puts the word “forged” to an iron – they mean it.

Instead of resorting to using multiple materials to make a fast and forgiving player’s iron, Mizuno engineers chose to look at different materials to create speed without sacrificing feel.

To do this, the JPX923 forged It consists of two different materials throughout the collection. Irons use the 4-7 Chromoli 4120 forged, which allows for milled pocket expansion in the bore and a slimmer putter face to increase ball speeds and subtly enhance the MOI. The 8-GW, on the other hand, is forged from the same 1025E Pure Select mild carbon steel as the JPX923 Tour iron for precision and control.

“The new JPX923 Forged accomplishes two great feats. First, it looks more solid even though it’s faster off the face. Second, it looks sleeker with a slimmer topline and narrower sole even though it plays like a more forgiving club”
—Chris Voschal, Mizuno product manager.

The JPX923 Forged is available in both left and right

Mizuno Golf

To put into practice what new materials allow engineers to do in the face and bore of the JPX923 Forged, face thickness is now just 2.2mm behind the bumps compared to 2.6mm in the previous forged JPX921. In a world of precision manufacturing, four millimeters is a lot!

To enhance the JPX923’s look from the title, the iron has a slimmer topline across the entire lineup, as well as a tighter blade length in the 8-iron to the gap wedge for better grass interaction and combo blending.

JPX923 Tour

JPX923 Trekking Irons

Mizuno Golf

The player’s back-forged bore irons are all about providing precise control, with a confidence-inspiring look and feel. Since the first iteration of the JPX touring iron with the original JPX900 series, Mizuno engineers have been constantly changing designs based on player feedback to deliver on performance promise, once again raising the game when it comes to feel.

Underneath the satin chrome is a layer of brass

Mizuno Golf

Just like with all recent MP (Mizuno Pro) irons including the 221, the new JPX923 Tour The irons feature a copper baseplate to match the Grain Flow Forged 1025E Pure Select’s one-piece, mild carbon steel construction. This copper core, made famous in popular Mizuno irons such as the TN-87, delivers a more compact sound at impact for a smoother feel.

“The goal was to engineer a compact, so that players have a rearward whoop and it looks like muscle returning on impact. With a copper base layer and a new top line, the JPX923 round is right up there.”
– David Llewellyn.

V structure on the JPX923 Tour

Mizuno Golf

Other improvements to the JPX923 round design include a redesigned V-body to distribute mass away from the center of the head for increased stability, a thinner topline and a more compact iron (6-GW) for better control of shot formation and turf interaction.

Mizuno S23 wedges

S23 wedges in cobalt brass

Mizuno Golf

When engineers design wedges, they go out of their way to maximize two very important parameters – spin and versatility.

Mizuno’s new S23 wedges achieve maximum spin thanks to loft-specific quad-cut grooves milled in boron-infused 1025 mild carbon steel and Mizuno’s laser-etched HydroFlow Micro Grooves to direct moisture away from the impact zone faster to reduce spin loss in wet conditions.

overall transformation form

Weight pad shown on S23

Mizuno Golf

The second part of the spin-diversity equation is shaping the unique S23 bore and fixing the profile. Wedges improve the short side and heel to push a great deal of mass toward the toe. This double-sided cushioning creates a perfect center spot for great trajectory control on shots hit all over the face and less deflection on impact that results in a higher MOI.

“That checking and spin that you see from the pros isn’t just because of the newer grooves—most of us just don’t have the consistency to strike to get that kind of action. For the vast majority, the center center point makes it easier to find and get that frequent spin control.”
—David Llewellyn, Mizuno’s director of research and development.

Want to fix your bag for 2023? Find a suitable location near you at the GOLF affiliate True Golf spec.

Ryan Barath

Golf.com editor

Ryan Barath is Editor of GOLF Magazine and Senior Equipment Editor at GOLF.com. He has an extensive background in club installation and construction with over 20 years of experience working with golfers of all skill levels, including PGA Tour players. Prior to joining the staff, he was the Principal Content Analyst for Tour Experience Golf, in Toronto, Canada.

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