Mizuno JPX-923 Forged Irons Specifications
Full factory loft, lie and length chart for the Mizuno JPX-923 Forged irons, 2022–2024.
- Years produced
- 2022–2024
- Category
- Players Irons
- Construction
- forged
- Material
- Chromoly 4120 in the 4-7 iron, 1025E Pure Select mild carbon steel in the 8-iron through gap wedge
- Set makeup
- 4–GW
Data confidence: medium. These figures are compiled from secondary sources rather than a manufacturer spec sheet. If you have an original catalogue page, send it over and we will update the chart.
Loft, lie & length chart
| Club | Loft (°) | Lie (°) | Length (in) | Offset (in) | Bounce | Swing wt |
|---|---|---|---|---|---|---|
| 4 | 21 | 60 | 38.5 | 0.155 | 2 | D2 |
| 5 | 24 | 60.5 | 38 | 0.147 | 3 | D2 |
| 6 | 27 | 61 | 37.5 | 0.139 | 4 | D2 |
| 7 | 30 | 61.5 | 37 | 0.131 | 5 | D2 |
| 8 | 34 | 62 | 36.5 | 0.122 | 6 | D2 |
| 9 | 39 | 62.5 | 36 | 0.114 | 7 | D2 |
| PW | 44 | 63 | 35.5 | 0.106 | 8 | D2 |
| GW | 49 | 63 | 35.25 | 0.094 | 9 | D2 |
Lofts and lies are the factory standard build. Individual clubs may differ if they have been bent, re-shafted or re-gripped during their life.
About the Mizuno JPX-923 Forged
The JPX-923 Forged split the set by material for the first time in the line, using third-generation Chromoly 4120 forging in the 4- through 7-iron for ball speed and 1025E Pure Select mild carbon steel in the 8-iron through gap wedge for feel. Face thickness behind impact dropped to 2.2 mm from 2.6 mm on the JPX-921 Forged, and a new V-Chassis allowed a thinner topline. The stock set is 4-iron through gap wedge with offset from 0.155 inches down to 0.094 inches, and the 7-iron is 30 degrees against 28.5 degrees on the matching JPX-923 Hot Metal. Lofts, lies and lengths listed are the men's standard steel-shaft build.
Related models
- Same generation, stronger lofts: Mizuno JPX-923 Hot Metal
- Predecessor: Mizuno JPX-921 Forged
- Successor: Mizuno Pro 245
- Compare: Mizuno JPX-923 Forged vs Mizuno JPX-921 Forged
- Compare: Mizuno JPX-923 Forged vs Mizuno Pro 245
- Compare: Mizuno JPX-923 Forged vs Mizuno JPX-923 Hot Metal
Frequently asked questions
What is the loft of a Mizuno JPX-923 Forged 7-iron?
The Mizuno JPX-923 Forged 7-iron has a loft of 30 degrees, with a 61.5-degree lie and a 37-inch steel-shaft length.
How do JPX-923 Forged lofts compare with JPX-923 Hot Metal?
The Forged is weaker by 1.5 degrees through most of the set. Its 7-iron is 30 degrees against 28.5 degrees for the Hot Metal, and its pitching wedge is 44 degrees against 42.5 degrees.
Are the JPX-923 Forged irons made from one material?
No. The 4- through 7-iron are Grain Flow Forged from Chromoly 4120 for ball speed, while the 8-iron through gap wedge are forged from 1025E Pure Select mild carbon steel.
Finding a used set
The Mizuno JPX-923 Forged is no longer in production, so the used market is the only source. Search eBay, 2nd Swing, Golf Avenue and the PGA Tour Superstore trade-in listings, and check the loft and lie against the chart above before buying — sets this age have often been bent from standard.
- tgw.com Golf Guide, Mizuno JPX 923 Forged Irons review specification table (loft/length/lie/bounce/offset/swingweight)
- golfonline.co.uk Mizuno JPX 923 Forged Irons product page specification table (independently confirms loft/lie/length/offset)
- todays-golfer.com Mizuno JPX923 Forged iron review (confirms the 30-degree 7-iron and the Chromoly 4-7 / 1025E 8-GW material split)
- 2ndswing.com lists lengths a quarter inch longer (38.75 inches in the 4-iron); the 38.5-inch figure from the two official-derived tables above was used.
Last reviewed 2026-07-22. Spot an error? [email protected]