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

224 Reviews

Heimo

Everything Advertised !

I got these for my 75th birthday. Amazing. I think I’ll get set!

Marv18

I’m 74 and fluctuate between an 11 and 13 index. I got the Quantum Max OS irons a couple of months ago because I needed help getting a higher trajectory and steeper descent with my mid irons. I have been very pleased with the results.

Wayno49

The Over Sized Grips And The Senior Flex Shafts A!

Love my new irons!! Best set of irons that I ever had!!

Bria

Quantum Iron

Very accurate. Feels very well balanced in my hands.

DG816

Received incentive

Old School

Nice return to the old school Callaway. High launch, very playable. Love my new irons

Marky

It Will Not Disappoint

What an awesome set. Deadly accurate and I am not kidding.

HectorG

Great Clubs

These clubs feel good. Solid and great quality. Very happy with them.

GBURKE

Received incentive

I am happy with my purchase. Wotking great so far. Thanks

LMD1

Quantum

Excellent - major improvement on my iron play. Especially wedges.

ShaneMay

Received incentive

Love The New Irons

Awesome clubs. Very easy to hit. Highly recommend

CharlieQ

Received incentive

Easy To Flight

The build quality was immediately noticeable the grips were installed correctly! I’m super satisfied after a month of playing these clubs they’re a dream!

Buddy B

Great Game Improvement Irons For Seniors!

Traded my Callaway Big Bertha B21 irons for the Quantum Max OS irons, and really liked the way they looked, then went to a Callaway fitting in my area and ordered a Quantum Triple Diamond Max driver and tried the irons with graphite shafts, so now I'm getting the irons with graphite shafts. As a Senior the graphite shafts really make a smooth hitting iron. Love the Callaway products.

Toby H

Amazing Irons

Great set of irons, went from Elyte X to these and within a month I’ve dropped my handicap 3 strokes. Highly forgivable and easy to hit!

Icarusbrewing

Received incentive

Improved Distance

Just got these a couple of weeks ago and I have seen a great 15-20 yard distance improvement per club over the starter set I bought when I took up golf again.

Jerry G

Received incentive

Game Changer

Game Changer! I haved droped my handicap by 3 strokes since I purchased these irons. My Green in Regulations have jumped by 30%. They are great irons that promote forgiveness and still give you great playability. The spin rate has really helped stick the Greens.

Read All Reviews (224)