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Callaway Quantum Max OS Irons

About This Item

Quantum Max OS blends confidence with maximum forgiveness, powerful speed, and consistent carry—all in an oversized shape designed to help golfers hit it more solid across the face.


Modern 360° Undercut

  • The Modern 360° Undercut Cavity is designed to deliver faster ball speeds, higher launch, and more forgiveness across the face, thanks to its advanced two-piece design with extreme perimeter weighting and a fully exposed undercut for added flex where golfers need it most.

Progressive Tri-Sole Design

  • The Progressive Tri-Sole Design promotes cleaner, more consistent contact across the set, with a reengineered sole geometry that adapts from long irons to wedges for smooth turf interaction and efficient speed retention—even on heavy strikes

Next Generation Ai-Optimized Face Design

  • The Next Generation AI-Optimized Face delivers faster ball speeds and more consistent launch, spin, and dispersion by intelligently shaping the face to match real-world impact patterns and expand the sweet spot.

Urethane Microspheres

  • Urethane Microspheres enhance sound and feel at impact by absorbing unwanted vibration, delivering a softer, forged-like sensation in a high-speed game-improvement head.

Oversized, Confidence-Inspiring Shape

  • Quantum Max OS is built for higher launch and maximum forgiveness—all in an oversized shape that inspires confidence at address.
  • Brand : Callaway
  • Country of Origin : Imported
  • Style : 4N604486N2006 4N607686N2006 4N704486N2006 4N607286N2006 4N707286N3006 4N607686P2006 4N607269I1006 4N607286P2006 4N607286Q3006 4N707269I1006 4N707286P2006
  • Web ID: 25CALMGOLFQNTMMXSSELQ
ClubLoftLoftLieLengthOffset (mm)
419.0°21.0°60.375°39.125"6.35
522.0°24.0°61.00°38.50"5.89
625.0°27.0°61.625°37.875"5.41
729.0°31.0°62.25°37.25"4.80
833.0°35.0°62.875°36.625"4.19
937.0°39.0°63.50°36.00"3.56
PW42.0°44.0°63.75°35.75"2.79
AW47.0°49.0°64.00°35.50"2.21
GW51.0°53.0°64.00°35.50"1.65
SW55.0°57.0°64.00°35.25"1.12

REVIEWS

4.9
100%
Recommended

93 Reviews

Forgiving Irons

[This review was collected as part of a promotion.] Over the past few years, I've gone from Rogue X, to Elyte X, to now the Quantum Max OS. I opted for the OS over the regular Max as I was primarily looking for forgiveness than any other feature, and while I have only played a few rounds with these irons so far, I believe these are more forgiving than the Elyte X's. It was advertised that these clubs make it easier to get the ball in the air, and that has certainly been the case for me so far. I feel like they interact with the turf very well both in the fairway and rough. The only thing I believe the Elytes have on these is distance. I have not seen any gain in distance at all, or at least not yet. But adding distance was not my goal in trading for these. I was primarily looking for forgiveness and consistency, and I believe these are an improvement over the Elyte X in those areas.

Amazing Clubs

[This review was collected as part of a promotion.] Love these clubs! Trades up from the AI Smokes since the graphite shafts weren’t my style. Hard to miss hit a ball with these.

Quantum Max Os Irons W Graphite Shafts

[This review was collected as part of a promotion.] Great set for the 18 HC. I had Big Bertha from 2004 so it was time to upgrade. I love these irons and how forgiving they are. I’m a little older 59 and these help with distance and keeping the ball in fairway. Great set for a weekend hack that wants to hit straighter and feel good about a round of golf. Highly recommend.

Great Feel

[This review was collected as part of a promotion.] Love the feel of these irons. Now I might even be able to keep the ball in the fairway.

Great Club

[This review was collected as part of a promotion.] Gained 20 yards hitting straight! What else can you ask for? Forgiving…

Quantum Max Os + Nippon Zelos 8 = Golf Fun Again

Absolutely love these irons. I switched from the X Forged Max and had a hard time getting the ball in the air and making consistent contact. The Quantum Max irons with the Nippon Zelos 8 shafts have been a game changer. Much easier to hit, more forgiving, and the launch is noticeably higher. As a higher-handicap golfer (15+ handicap), they’ve helped my confidence and consistency tremendously. I’m enjoying playing golf again and would definitely recommend them to anyone looking for a forgiving iron that helps get the ball airborne. One thing I highly recommend is taking advantage of the free upgrade to the Nippon Zelos 8 shafts if it’s available. In my opinion, it’s a much better shaft option for the same price. The lighter weight and smooth feel have made it easier for me to generate clubhead speed, launch the ball higher, and make more consistent contact. Overall, these irons have made a huge difference in my game and brought the enjoyment back to golf. Five stars from me.

Quantum Max Os Irons

I have now played 4 rounds with these clubs. I have a lot better contact with these compared to my Elite X irons. I am trading in a second set to get a second set of these. I keep one set at my house and another at the beach house.

Jteel34

Bought last month, have been out 3 times and wow what a difference these clubs have made. Highly recommend

Not So Great

I DID NOT KEEP THESE IRONS. I RETURNED THEM FOR ELYTE X

Max Os Irons

[This review was collected as part of a promotion.] Received a couple of weeks ago. Really well made and solid. These are going to be in my bag for while.

Great Forgiveness

[This review was collected as part of a promotion.] I bought a full new set so I'm still getting used to them. So far I have been very happy with the woods.

Forgiving And Comfortable To Swing

The swing with these irons feels great. I’m a 30 handicap golfer and it’s easy to consistently hit the sweet spot on the face expect great distance with them too! I added 20+ yards with each club throughout the club range.

Like The Graphite Shafts For My Slow Easy Swing

[This review was collected as part of a promotion.] Wished I had gone to graphite shafts 5 years ago. Not only have I moves to graphite but to OS clubs by Callaway. Turned 74 last week and needed a different mindset to play my best and happy that I moved to the Senior Irons that I now have in my bag.

Callaway Hits The Mark Once Again!

I purchased the Callaway Quantum OS irons and I love them . they are the just ahead clubs I've ever owned , maximum distance with less effort ! a great Club mid handicap with lower swing speeds . the ordering and buying process was very streamlined and overall a great experience ! I will be buying Calloway again !

Great Irons!!

[This review was collected as part of a promotion.] I purchased these about a month ago and I love them.

Read All Reviews (93)

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