Mizuno JPX-900 Forged Irons Specifications
Full factory loft, lie and length chart for the Mizuno JPX-900 Forged irons, 2016–2018.
- Years produced
- 2016–2018
- Category
- Players Distance Irons
- Construction
- forged
- Material
- 1025E boron-infused carbon steel
- 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 |
|---|---|---|---|---|---|
| 4 | 21 | 60 | 38.25 | 0.161 | 1 |
| 5 | 24 | 60.5 | 37.75 | 0.152 | 2 |
| 6 | 27 | 61 | 37.25 | 0.142 | 2 |
| 7 | 31 | 61.5 | 36.75 | 0.132 | 3 |
| 8 | 35 | 62 | 36.25 | 0.122 | 4 |
| 9 | 40 | 62.5 | 35.75 | 0.112 | 5 |
| PW | 45 | 63 | 35.5 | 0.102 | 6 |
| GW | 50 | 63 | 35.25 | 0.093 | 7 |
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-900 Forged
The JPX-900 Forged is Grain Flow Forged from a boron-infused 1025E carbon steel, which Mizuno used to build a thinner, stronger face while keeping a bendable hosel for loft and lie adjustment. It is a compact players-distance iron with a modest cavity and moderate offset, sold as a 4-PW plus gap wedge set. Lofts are stronger than Mizuno's MP line of the same period, with a 31-degree 7-iron. Lengths and lofts listed are the standard men's steel-shaft specification.
Stock shafts
- True Temper Project X LZ — steel
Related models
- Earlier Mizuno forged players iron: MP-57
- Compare: Mizuno JPX-900 Forged vs Mizuno JPX-850 Forged
- Compare: Mizuno JPX-900 Forged vs Mizuno JPX-919 Forged
- Compare: Mizuno JPX-900 Forged vs Mizuno MP-57
- Compare: Mizuno JPX-900 Forged vs Mizuno JPX-900 Hot Metal
Frequently asked questions
What is the loft of a Mizuno JPX-900 Forged 7-iron?
The Mizuno JPX-900 Forged 7-iron has a loft of 31 degrees, with a 61.5-degree lie and a 36.75-inch steel-shaft length.
What is the JPX-900 Forged made of?
It is Grain Flow Forged from 1025E carbon steel infused with boron, which lets Mizuno use a thinner, stronger face while keeping the hosel bendable for loft and lie adjustment.
How strong are the JPX-900 Forged lofts?
They are stronger than Mizuno's MP irons of the same era: 31 degrees at the 7-iron and 45 degrees at the pitching wedge, versus 35 and 47 degrees on the MP-57.
Finding a used set
The Mizuno JPX-900 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.
- InTheHoleGolf.com Mizuno JPX-900 Forged iron set product spec table (loft/lie/length/offset/bounce, 4-PW+GW set)
- 2ndSwing.com Mizuno JPX 900 Forged iron set specification table (identical figures, independent corroboration)
- GolfWRX launch article on the JPX-900 Hot Metal and JPX-900 Forged irons (1025 boron material, Grain Flow Forged, Project X LZ stock shaft)
Last reviewed 2026-07-22. Spot an error? [email protected]