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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.

Shaft Type

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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 5 5
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'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
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
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
Best blades ever. I have played blades forever. Yes, that is a long time. I am 69 with a 3 handicap and can honestly say that this club reminds me of how playable the old Hogan and Mizuno blades used to be. Bravo to Callaway on this great modern golf club. October 8, 2014
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