Mizuno Pro M-13 Irons Specifications
Full factory loft, lie and length chart for the Mizuno Pro M-13 irons, 2026–present.
- Years produced
- 2026–present
- Category
- Players Irons
- Construction
- Grain Flow Forged HD, split-set multi-material
- Material
- 4120 Chromoly pocket-cavity 4-5 irons with 431 stainless back, micro-slot forged 6-8 irons, one-piece 1025E from the 9-iron down
- Set makeup
- 4–GW
Loft, lie & length chart
| Club | Loft (°) | Lie (°) | Length (in) | Bounce |
|---|---|---|---|---|
| 4 | 22 | 60.5 | 38.75 | 2 |
| 5 | 25 | 61 | 38.25 | 3 |
| 6 | 28 | 61.5 | 37.75 | 4 |
| 7 | 32 | 62 | 37.25 | 5 |
| 8 | 36 | 62.5 | 36.75 | 6 |
| 9 | 40 | 63 | 36.25 | 7 |
| PW | 44 | 63.5 | 35.75 | 8 |
| GW | 48 | 64 | 35.5 | 9 |
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.
Length note: These lengths use the USGA / R&A measuring method, which Mizuno adopted for its published spec tables with this generation. They read about a quarter inch longer than the figures Mizuno published for earlier models such as the JPX923 and Mizuno Pro 241, 243 and 245, but Mizuno states that actual club length is unchanged. Subtract 0.25 inches to compare with an older Mizuno chart.
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Loft progression
About the Mizuno Pro M-13
The Mizuno Pro M-13 is the players cavity-back of Mizuno's 2026 Pro line, the successor to the Pro 243 and one of two "Modern Series" models launched alongside the more forgiving M-15. The set splits into three constructions: the 4 and 5 irons are pocket-cavity Grain Flow Forged with a 4120 Chromoly face and a 431 stainless back piece, the 6 through 8 irons are micro-slot Grain Flow Forged with a face 0.3 mm thinner than the prior generation, and the 9-iron through gap wedge are one-piece Grain Flow Forged 1025E. The Contour Ellipse face is 1.37 mm at its thinnest, which Mizuno says is about 35 percent thinner than the Pro 243. Lofts carry over from the Pro 243 unchanged — 32 degrees at the 7-iron, 44 at the pitching wedge — but the published lie angles sit half a degree to a degree more upright and the lengths a quarter inch longer than the 243 table, matching Mizuno's JPX-style build specs. Mizuno unveiled the Modern Series on 5 January 2026, with presale from 19 January and in-store availability on 5 February 2026.
Stock shafts
- Nippon N.S. Pro Modus Tour 120 — steel · 120 g class · flexes: S
Related models
Frequently asked questions
What is the loft of a Mizuno Pro M-13 7-iron?
The Mizuno Pro M-13 7-iron has a loft of 32 degrees, with a 62-degree lie and a 37.25-inch steel-shaft length.
When were the Mizuno Pro M-13 irons released?
Mizuno announced the Pro Modern Series, including the M-13, on 5 January 2026, with presale from 19 January and in-store availability on 5 February 2026.
Are the Mizuno Pro M-13 lofts different from the Pro 243?
No. The lofts carry over unchanged from the Pro 243 — 22 degrees at the 4-iron, 32 at the 7-iron, 44 at the pitching wedge and 48 at the gap wedge — though the published lies are slightly more upright and lengths a quarter inch longer.
Where it sits in the lineup
Introduced in 2026, the Mizuno Pro M-13 is a current players set in the Mizuno range as of September 2026, with no replacement announced. It replaced the Pro 243. New sets are built to the standard lofts, lies and lengths in the chart above, though a fitting can move any of them — so confirm the numbers on the order sheet. Used sets appear on eBay, and should be measured against this chart before buying.
- Length basis: Mizuno's own specification page for the Mizuno Pro 243 (mizunogolf.com, retrieved 29 September 2026) states that Mizuno is changing its official iron measurement method to match the USGA / R&A standard and that its published lengths are consequently about 1/4 inch longer while actual club length is unchanged.
- Mizuno official Pro M-13 club-specification page, mizunogolf.com/us/golf-clubs/mp-series/mizuno-pro-m13/club-specification/ (live, fetched July 2026) — full 4-GW table of loft, lie, length and bounce, plus the dexterity note 'RH & LH: 4-GW'. The page does not publish offset or swing weight, so those keys are omitted
- Mizuno official Pro M-13 product page, mizunogolf.com/us/golf-clubs/mp-series/mizuno-pro-m13/ — construction copy: pocket-cavity Grain Flow Forged 4120 Chromoly with 431 stainless in the 4-5 irons, micro-slot Grain Flow Forged 6-8 irons with a 0.3 mm thinner face, one-piece 1025E 9-GW, the 1.37 mm Contour Ellipse face (~35% thinner than Pro 243), Triple Cut Sole and Nickel Chrome Satin Brush finish
- todays-golfer.com 'Mizuno Pro M-13 and M-15 irons: everything you need to know' — M-13 replaces the Pro 243 as the players cavity-back, $215 per iron, stock shaft Nippon Modus Tour 120g (S)
- golf.com 'Mizuno launches new Mizuno Pro Modern series with M-13, M-15 irons, Fli-Hi utility' and the MyGolfSpy forum launch thread — Modern Series announced 5 January 2026, presale from 19 January, retail 5 February 2026. Announcement and retail both fall in 2026, so year_introduced carries no announcement-vs-model-year gap this cycle
- Status check, 29 September 2026: confirmed as a current model with no replacement announced. Listed on Mizuno's irons page (mizunogolf.com).
Last updated 29 September 2026. Spot an error? info@loftchart.com