Everything you need to know about Mizuno’s new JPX 919 series

Mizuno has long been recognized as one of the leaders when it comes to iron development, and the success of the clubmaker’s irons with major champions—namely Brooks Koepka—is one of the more interesting stories in golf equipment in recent years. After all, Koepka wasn’t being paid to play Mizuno—he played them because they worked.

Now the company is hitting Golf Town with its latest irons—the JPX 919 series, which includes Forged, Hot Metal and Tour versions.

There is now a JPX iron for every player. For the low-handicapper there’s the Tour version. A similar player might want a bit more tech from their irons, and they’ll find it in the Forged version, while the Hot Metal offers distance.

Mizuno JPX 919 Forged

Key Technologies

Materials: With feel such a compelling part of the Mizuno story, it isn’t surprising that’s the case with the JPX919. The Tour is forged from 1025E Pure Select Mild Carbon steel, while the JPX919 Hot Metal is crafted from high-strength Chromoly 4140M. Finally, the JPX 919 Forged is grain flow forged from steel infused with boron.

Look: As you’d expect, the latest from Mizuno has variations in their appearance, with the Tour irons offering the smallest head and progressing to the Hot Metal, which has the largest. But the irons are also unmistakably Mizuno—sexy, Grain Flow Forged from Boron-infused steel.

Mizuno JPX 919 Hot Metal

Despite their design differences, all three JPX 919 irons feature the same profile and aesthetic that you would expect from Mizuno. The top of the 919 Tour is 10% slimmer than its predecessor, while offering more stability. The 919 Forged offers a more refined playing profile, while blending ball speed, stability and feedback.

Shafts: All versions of Mizuno’s new irons come with a wide variety of shafts with no upcharge.

Better launch: The JPX 919 is loaded with tech. There’s a thinner club face over the previous model, along with a micro-slot in the sole for increased COR that also allows for an improved forgiveness across the club face. The micro-slots also allow for improved launch conditions on longer irons.

Who is it for?

Canadian Mizuno manager Chris Caldwell says the new irons are modern looking, but are very dynamic in their use of technology. Caldwell says the key distinction between the various irons is distance, with a split of about 10 yards between the Tour and Hot Metal versions.

Mizuno JPX 919 Tour

“If you want a bit of extra distance, with the look and feel of what you get from the Tour version, then the Forged 919 is for you,” he says.

Mizuno is clearly counting on Hot Metal to be the breakthrough of the group. While still providing the look and feel one expects from Mizuno, the clubmaker changed the flight of shots hit with the irons to appeal to a broad audience.

“A lot of modern distance clubs are so hot that there isn’t enough spin to stop shots once they hit the green,” says Caldwell. “That’s not going to be a problem with JPX919.”

Get Custom Fit

Mizuno irons are available now for Custom Fitting in-store. Find a Mizuno Fitting Day near you or contact your local store to book an appointment with a Golf Town Master Fitter and find out which JPX 919 is right for your game.

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