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Apex Muscleback Irons

The Apex Muscleback Irons are classically crafted, Tour inspired blades with playability in our most premium forged design, and if you're an elite player, they need to be in your bag.

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Features + Details

Tour Validated Shape

Tour Pros know what they like, and their feedback played a big role in this design. It’s a classic muscleback shape and style that the best players demand from a blade. Designed to give you the confidence to play any type of shot whenever you need to.

High Performance Grooves

The high performance wide spaced grooves are built in to give you more control and consistent spin out of a variety of playing conditions. Or to put it another way, you’re getting the best of both worlds – pinpoint shot-making and playability.

Forged Design

Our most premium forging, and it’s made from 1020 Carbon steel for the softest feel. The guys on Tour love it. This quad forged design delivers ultimate craftsmanship and precision.

Optimized Sole Camber

We put this camber on the sole of the club to optimize turf interaction from a variety of lies. It’s there to give you more playability than you would ever expect from a muscleback.

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Apex Muscleback Irons 5 5 10 10
Best Irons I've ever hit Received my new MB's a couple of weeks ago and after 5 rounds I absolutlely love them. I even love the fact that I didnt have to wait on them being left handed. Keep up the great work Callaway, you have a very loyal customer here!! October 13, 2014
Wow ! Best clubs ever ! Period ! Being a lefty its the only way to go . Again Callaway is the only company with Quality Callaway , You should be proud of the workmanship . Great clubs easy to hit blades that fly farther than you advertise . Tell them less and give them more ! This company is outstanding when it comes to quality control with Left handed equipment November 15, 2014
What I was waiting for I feel these are the best blades on the market right now. They are easy to hit, extremely forgiving for a blade. Your long iron shot will fly high with ease. You will be able to shape your shots with ease! Overall, great product! October 19, 2014
Best irons I have ever played with Played my new set with the KBS V shaft and was totally taken by surprise by how good these are. I have had MP29''s, Diablo Forged, X Forged, and Miura's and these are by far the best on so many levels. Bought them on spec having never seen them let alone tried them and am totally happy with my purchase. September 25, 2014
Love them I went into my local Golfsmith to buy titleist mb irons. My teaching pro told me to hit a number of iron to compare. I hit about 30 balls using their foresight launch monitors. I hit all forged and mb irons. The callawy mb's clealry felt the best and the results where also the best. I really struggled not buy what I really came to buy. But these irons just felt that much better. I hit balls daily in my own golf room and the results with these clubs are awesome. Can't wait for the snow to melt!!! January 25, 2015
You have to play these I don't think you have to be a single digit handicap to play them. They are great, long and it's the perfect club to shape shots December 21, 2014
Not just for pros Long irons launch relatively higher. Short irons launch relatively lower = brilliant workability. Pro highly recommended apex or apex pro given my 18 handicap and have only been playing golf 6 months. I went against advice because mb's were the best looking by far and I knew I was a good striker of the ball. If confident at address get them, awesome, the best. November 30, 2014
Everything you would ever want from a blade -- and so much more. So, these were the first club in my life I've bought without ever hitting. Having set one down at a demo day, but being too injured to hit them, they looked THAT good. So I preordered them, and began the agonizing process of waiting. Finally, they came. And wow, they're incredible. The first thing you notice when you hit a ball is how they manage to be both incredibly buttery, but remarkably solid at the same time. About 5 minutes later, when you're done staring in awe at these clubs, you'll hit your second ball. On this one, you might notice how easily they get the ball of in the air, without ever a thought of it ballooning. So then you'll get a few more balls hit in your first bucket, and probably be aware of how absurdly consistent these blades are. They do exactly what you tell them to do, and nothing more. There isn't any variance in these clubs. You put a 5 yard cut swing on it, and it will cut 5 yards. Not 6, not 4, 5 yards. Every time. These clubs are not leaving my bag at any point in time in the next 10 years, and the incredible feedback they give have made me a substantially better ball striker. My only question is: Where does Callaway go from here? November 29, 2014
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