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
  • 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

74 Reviews

Swinging With Confidence.

I'm hitting my PW as far as my previous Big Bertha's 8 iron, granted these clubs were from the early 2000. They allow me to hit with confidence. The only down fall is that I have to retrain myself on club selection.

New Beginnings

Bought them a month ago and used them on 3 rounds. Game has improved.

They Are Great

So far very pleased. These irons are very forgiving and have definitely helped me to hit the ball higher. Very glad I traded up for them

Received incentive

Best Irons In A Long Time For Me.

I love these clubs. I hit them straighter since switching to them.

Quantum Irons

I bought these irons a two weeks ago and finally got a chance to use them. Instead of my old 7 iron I use my new 8 even 9 iron. The same with my other new irons. I hit them much straighter as well. Very happy with my purchase

Solid Club

I returned the clubs. I had a problem hitting to the right. Partially my fault for not having a fitting.

Received incentive

Quantum Max Os

Just traded my Stealth irons w/graphite shafts for the NEW Quantum Max OS. Really love the feel and bigger head of the Quantum’s and so far I’ve been clubbing down on my selection so am also hitting these Quantum’s a bit farther. So far I’m very happy with the trade!!

Feel - See Difference

Good solid clubs that I feel more confident with than my Elyte irons.

Quantum Max Os Irons Review

The Quantam Max OS Irons are what I hoped for when I bought them. The heads are a bit heavier, but that is to be expected. However, the improved forgiveness and accuracy is far better than I hoped for so I think it's a fair trade-off. I'm very pleased with their performance.

Received incentive

Great Game Improvement Iron

A little loud on the strike, but overall a solid game improvement iron. I really like the look of them at address and have noticed that even on miss-hits I am more consistent. I was a little skeptical of cavity design compared to the Elytes, but they have grown on me!

Received incentive

Great Clubs

Won’t be going away from these any time soon. Super easy to hit very long and very forgiving!

Quantum Irons

Best irons I have ever owned. I have been playing golf 50 years. These irons are the best ever.

Great Clubs!!!!

Main purpose of buying these clubs were to take impact off my shoulders at contact. My previous Callaway clubs were getting a little too hvy for my aging body and the graphite shafts fixed that problem. Clubs hit true but will not eliminate complete miss hits. I wanted to clarify that, b/c even my slightly off from center strikes were still fairly straight in the direction I was aimed.

Received incentive

Better Scores

These clubs have improve my game so far,,more distance,accuracy!Very satisfied !

Sbz22

Received incentive

Played a couple of rounds.....so far so good. Ball seems to end up closer to where I wanted.

Read All Reviews (74)