Mizuno M-13 Irons Review

Mizuno are introducing an all-new Modern Series of irons for 2026, following on from their Signature Series last year which featured the excellent Pro S1 and S3 models. There are two new irons in the range and this review will focus on the M-13, which replaces the Pro 243.

Said to offer a ‘fresh evolution in forged performance’ the new M-Series offers a little bit more help compared to the S-line, whilst retaining Mizuno’s signature looks and feel.

In all honesty I find Mizuno’s iron ranges a little bit confusing as there are so many different models and ranges to keep track of that seem to get updated with different names every year. Having two clear lines like this for better players (S) and then single-to-mid handicap golfers (M) does simplify things a bit, let’s just hope they stuck to it going forward…

Who Are They Aimed At?

Essentially these are the third-smallest irons in Mizuno’s range, after the S1 and S3. As a result they’re probably best suited to single figure golfers, even moving towards scratch. This is reflected by the pretty traditional 32 degrees of loft (7-iron), although there was still decent forgiveness there too.

However, with a whopping RRP of £240 per iron, they really are very expensive. I currently use Titleist T250 irons and these M-13 irons are about £300 more expensive for a set of 7 irons.

You need to be prepared to part with that amount of cash, or be a big Mizuno fan, to justify that in my opinion, because you can probably find irons that perform very similarly but at a lower price.

Make sure you SUBSCRIBE to our channel so that you don’t miss another video!

The Tech

The new Mizuno M-13 have been designed with three different forging technologies and materials, aimed at optimising performance for each iron in the set.

It features a Triple Cut sole, using a wrap around sole grind and leading edge bevel to help improve turf interaction.

There was also a goal of producing higher ball speed and higher launching long irons. This is achieved thanks to Contoured Ellipse Corarea technology in the 4 and 5 iron. It’s 35% thinner than the previous Pro 243 iron, but still manages to give you the kind of feedback you’d expect from a forged iron.

In the 6-8 irons, the irons are grain flow forged with a slightly thinner face than last time. This increases flex and offers controlled ball speed gains without being too hot.

The 9 iron down to the wedges are forged from a single piece of metal. This priorities precision, control and a soft feel.

Mizuno also use Harmonic Impact Technology, along with a copper underlay and full cavity badge. This helps to fine-tune vibration, and create a cleaner appearance.

There’s also a Nickel Chrome Satin Brush finish, helping to get rid of glare and add to the premium overall look.

Mizuno M-13 Irons Review

Looks

As you would expect from Mizuno, these irons look fantastic. It’s a really nice blend of classic design, with a modern finish.

The M-13 irons still have a compact profile, and look like a better player’s iron, but there’s a little bit more technology within the head to help you out. I loved the brushed chrome finish, which adds a premium touch.

Despite being the smaller of the two heads it’s still not intimidating. There’s a relatively generous sole width, featuring some nice cambering to the sole which helps with turf interaction.

Down by the ball is a fairly short blade length, with just a tad of offset. Even from address, it just looks exactly as you would expect a Mizuno iron to look, and it made me excited to start hitting shots.

Feel

Despite looking more like a players iron, there is still some forgiveness in the head which is reassuring.

It’s a really nice sounding and feeling iron. You get a really compact, punchy feel through impact which I really liked. These days with players distance irons I think you can often find heads which feel a little too hot and too hollow, there’s none of that here.

The M-13 still retains that forged feel, giving you feedback off the face but providing a bit more stability and forgiveness than a pure players iron.

Even on a couple of shots that I hit a bit thin, the performance was still good without any stinging fingers, which is always a bonus!

Performance

I tested both the M-13 and the M-15 together, and as expected, there were a few differences which really highlight the individual strengths of each of these irons.

The M-13 was producing ball speeds of around 117mph with a 7 iron, which is pretty good for me. The spin rate was just under 5400rpm, which I would ideally want to be a little bit higher, but it did still seem to be landing pretty soft thanks to a descent angle of around 48 degrees.

My average carry with the 7-iron was 168 yards, which isn’t huge in terms of distance, but it’s a number that I’d be very happy with on-course – it’s a number I’m used to. Anything too much higher than the 170-172 mark I think is in danger of feeling ‘too hot’, whereas anything down towards the 165 mark feels like I am giving up distance.

The M-15 was carrying around 10 yards further on average, thanks to the 3 degrees stronger loft and extra technology to help with ball speed – if it’s great looks and distance you’re looking for in 2026, make sure you check them out!

Whilst this does provide two clear options in this mid-tier category of iron, I do think that the difference between the two might make it hard to combine them in one set. I think you may end up with big gaps, particularly at the top end of the bag, as the M-15 are just hotter in every department.

Mizuno M-13 Irons Verdict

I really enjoyed testing the Mizuno M-13 irons. I have to say that I struggled to find anything to criticise when it comes to performance. It seemed to perform exactly they way I would want from an iron in this category as well as, looking and feeling pretty awesome.

Their lineup has got a bit confusing in the last couple of years, but hopefully the distinct difference between the M-Series and the S-Series helps to streamline things.

For me there’s just one big drawback and that’s the price. An RRP of more than £1600 for a full set of irons is incredibly high, and puts them above some of their major competitors in the market.

They are excellent irons, but is there anything in the performance that makes them worth £300 more than the likes of Titleist, TaylorMade and Ping? Unfortunately not that I found, compared to my current Titleist T250 irons.

Would I Use Them?

Yes, definitely. Although if I was spending my own money I’m not sure I would be willing to pay that much for them – over to you!