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get up to £60 off your order! *terms and conditions apply
£5 off when you spend £50 - use code OPEN05
£10 off when you spend £150 - use code OPEN10
£20 off when you spend £300 - use code OPEN20
£30 off when you spend £450 - use code OPEN30
£40 off when you spend £650 - use code OPEN40
£60 off when you spend £850 - use code OPEN60

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Mizuno Pro 243 Steel Golf Irons
Mizuno Pro 243 Steel Golf Irons
Compact Cavity Back Design
Product Reviews & Buying Guides
Mizuno Pro Irons - Which Should I Choose?
Mizuno Pro Irons - Which Should I Choose?
60 Day Play Better Promise
60 Day Play Better Promise
Graphite or Steel Shafts - Which should I choose?
Graphite or Steel Shafts - Which should I choose?
Meet our Head Professional
Meet our Head Professional
Why Shop With Us?

Mizuno Pro 243 Steel Golf Irons - 7 Clubs

Compact Cavity Back | Authorised Mizuno Retailer | Custom Fit Service

RRP £1505.00
Save £106.00 (7%)

Earn £34.98 loyalty points (Account required) loyalty points*

Trade in your old Club - Click here to get a quote!

Standard Options
Select Hand
Select Shaft Flex
Select Set Options
Custom Fit Options

Custom Fit lead time - 2-3 Weeks


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When will this be delivered?

          Mizuno Pro 243 Steel Golf Irons

          • Authorised Retailer
          • Free UK Delivery*
          • Full Manufacturer Warranty 

          The Mizuno Pro 243 is a more compact and precise iron than its predecessor, but it has gained speed across the face and provides a more satisfying feel at impact. It's a fantastic option for golfers who are seeking the tour-inspired, compact head design and appearance at address, with a bit more technology to improve ball speeds and stability. Using their tried-and-tested copper underlay and Grain Flow Forging process from Mizuno's exclusive forging plant in Hiroshima, Japan, has allowed for the refinements and developments visible in the 243 model without sacrificing the key elements that have made this compact Mizuno cavity back iron so popular.

          Key Features & Benefits

          • Harmonic Impact Technology - This helps Mizuno engineers to closely match the vibration patterns of their iconic muscle back irons to deliver the same soft feel that they are renowned for.
          • 4120 Chromoly with Flow Microslot (4-7 iron) - A wider micro-slot maintains ball speeds across a larger clubface area and contributes to a more forgiving launch in the long irons.
          • 1025E Pure Select Mild Carbon Steel (8-GW) - As featured throughout the 241 irons, this provides the ultimate feel and control where it's needed most. Modern lofts have been used to maintain even distance gapping through the set.
          • Increased Bounce Angles - An extra degree of bounce in the long irons and 2 degrees in the scoring irons encourages an improved turf interaction through impact.
          • Wrap-Around Sole Grind - Heavy relief around the sole improves turf interaction and provides a seamless transition from the micro slot found in the long irons down to the 7-iron into the more traditional construction from 8-iron downwards.
          • Compact Players Profile - A thinner topline and reduced blade length throughout the set provide a fantastic tour-inspired look at address.
          • Full Satin Brush - A less reflective finish that provides a more modern appearance.
          • Grain Flow Forged HD in Hiroshima, Japan - The 243 irons go through their Grain Flow Forged process, starting as a single biollet, at the same exclusive Mizuno iron facility where their irons have been produced since 1968.
          • Soft Copper Underlay - A microlayer of copper beneath Nickel Chrome provides additional enhancements to the feel of Mizuno's Grain Flow Forged heads.

          At the Golf Shop Online, we offer a range of custom options and our 60-Day Play Better Promise so you can buy with confidence, and if you’re not completely satisfied, we can take your new clubs back!

          Why buy from us?


          • Standard shaft: True Temper Dynamic Gold Mid 115 S300 (S) - Mid-launch and spin

          Standard Lofts

          • 4 - 22°
          • 5 - 25°
          • 6 - 28°
          • 7 - 32°
          • 8 - 36°
          • 9 - 40°
          • PW - 44°
          • GW - 48°

          60 Day Play Better Golf Promise

          We believe you'll like these new golf irons so much that we're happy to offer you a 60 Day return guarantee*

          If you're unhappy with your irons, you may return them to us for an exchange. This exchange could be against another iron set or a shop credit redeemable for six months.  

          All you have to do is send it back to us with a cover note including your GSO order number and a brief note letting us know what you didn't like about it. 

          The cost of the return will be down to you, and The Golf Shop Online cannot be held accountable for any return not received. We recommend using a signed-for, tracked service to provide the best cover. 

          Terms & Conditions

          • Sixty days run from the date of delivery.
          • Only available on selected products displaying our "Play Better Golf Promise" logo. 
          • Fair usage applies - we will return the product to you if it displays any damage. Sky marks or any dents/scrapes to the head will be rejected. The headcover has to be new, and your golf bag can not damage the shaft. The tool (if applicable) will need to be returned as well.
          • The cost of returning the product to us will be down to you. We recommend taking out insurance for the return.
          • The Golf Shop Online are NOT accountable for any return not received back
          • Applies to standard clubs and custom fit.
          • Customers can only use this promotion once.
          • Customers must email to gain authorisation before returning.

          The Open Special Event
          get up to £60 off your order! *terms and conditions apply
          £5 off when you spend £50 - use code OPEN05
          £10 off when you spend £150 - use code OPEN10
          £20 off when you spend £300 - use code OPEN20
          £30 off when you spend £450 - use code OPEN30
          £40 off when you spend £650 - use code OPEN40
          £60 off when you spend £850 - use code OPEN60

          Ends Soon

          Finishes Soon

          About Us

          Welcome to The Golf Shop Online, where our passion for golf drives us to provide you with an exceptional shopping experience!

          Back in 2002, we embarked on this journey with a vision to showcase an extensive range of incredible golf products and choices to our valued members. Our first pro shop faced space limitations, which led us to create a platform that could cater to all your golfing needs.

          Since those humble beginnings, our endeavour has blossomed into a robust and trusted online retailer representing the leading brands in the golf industry. We take immense pride in being your go-to destination for all things golf!

          The trust bestowed upon us by our customers is a privilege we deeply appreciate. We understand the importance of delivering the best service, pricing, and web experience. That's why we remain laser-focused on meeting and exceeding your expectations. Our commitment to excellence is reflected in our exceptional Trustpilot 5-Star rating and "rated excellent" score, which fuels our constant drive for improvement.

          Rest assured, we are authorised by all the brands we represent. Every product you purchase from us comes with our aftercare promise and the full backing of the manufacturer's warranty. Furthermore, we offer a hassle-free 60-day return policy, ensuring complete satisfaction.

          At The Golf Shop Online, we are dedicated to offering you the most competitive prices. We continually compare our prices with those of our competitors to ensure you receive the best possible deal. In the rare event that you find a lower price elsewhere, we even provide a price promise* to further enhance your shopping experience.

          If you need any assistance or can't find a specific product you're looking for, please don't hesitate to reach out to us. You can call our freephone number or drop us an email at Our friendly team is here to help.

          Thank you for choosing The Golf Shop Online. We look forward to serving your golfing needs with utmost dedication and care.

          Delivery & Returns


          Super Saver Delivery (UK Mainland, excluding Scottish Highlands)

          Free UK mainland delivery on all orders over £30. Thousands of products ready for immediate dispatch.

          FREE / £3.49

          Fast Truck

          Next Day Delivery Options (Selected Postcodes)

          *Place your order before 3pm Monday to Friday and upgrade your delivery to next working day.


          Play Better Promise

          60 Day Play Better Promise (Available on selected hardware)

          We offer a whopping 60 Day Play Better Promise on selected golf clubs.

          More Info


          60 Day No Quibble Returns Shop with confidence

          Have total peace of mind with our 60 Day Money Back returns policy.

          More Info

          Read more about our delivery and returns.

          Reviews of

          eg. Ping, Callaway
          eg. G400, G400 Max, If unknown, please send an image to
          For clubs, select Driver, Iron, etc. For anything else, select N/A
          For clubs, select Mens or Ladies. For anything else, select N/A
          For clubs, select Left Handed or Right Handed. For anything else, select N/A
          For clubs, select Yes or No. For anything else select N/A
          For devices, select Yes or No. For anything else select N/A
          How many clubs/items are you looking to trade in? For Iron Sets, please enter the number of irons in the set.
          Please let us know the specification of the clubs - eg. Dexterity, Composition, Flex. For devices, leave this blank.
          Please give as much information as possible [Loft/Shaft/Shaft Length/Flex/Grip/Grip Thickness/Lie/Length] - You can purchase anything, it does not need to match what you are trading in!
          Win 3 Dozen Pro-V1 Golf Balls - worth £150.00!

          Simply enter your email address below to be added to our mailing list and entered into this draw. Closing date 31st July 2024.

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          Thank you for entering our competition. The winner will be announced and contacted on 10th June 2024.

          Good luck!

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          Did you know, you can get 5% off your first order and free UK delivery for life* by opening up an account. Click here to sign up.

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