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

189 Reviews

EFM77

Very Forgiving For Beginner Golfers!

These are great. I am a new golfer but needed to order a custom set with 2” added because I’m 6’7” and standard clubs obviously weren’t working. These feel great and are very forgiving. I think they’re sharp looking, and while significantly thicker than “blades”, they’re not ridiculous looking. Because they’re slightly heavier, I find them much easier to control throughout my swing, and both the feel and sound upon contact is great. I would highly recommend for any new golfers looking for game improvement irons.

JPK3

Definitely Upgrade

A definite upgrade from my Rogues. Heads are lighter and more forgiving and consistent.

Jl25

Received incentive

Love These Irons

Very happy with Quantum irons. Soft feel of the club and graphite shaft is outstanding.

Reppoc493

Received incentive

Quantum Max Irons -Best Game Improvement Ever

Quantum Max irons are easy to hit very forgiving. The look inspires confidence, and performance is tops! Great feel to boot!

OldGuyAce

Received incentive

Max Os Hl

Very easy to hit. A little shorter than my Apex DCB irons but they are also the hl version. Bery satisfied with them. They ate also nice looking irons that do not look like sgi irons.

Ray1

Great irons. Very forgiving. Solid contact on ball. Great feel. Love the graphite shafts

Albert7812

Received incentive

So happy with the purchase played a few rounds and striking them well.

HOWIE H

Received incentive

Max Os Irons

These irons are terrific. They’re easy to hit and the shafts that were recommended by your sales people make it even easier. Highly recommended.

Bissy

Received incentive

Great Clubs

Great club and feel! The face and grooves have a smooth texture feel!

MikeF

Good Irons

When I hit square I am getting my old distance from the irons. I am also able to shape my shots very well

Clifford

Go Quantum

So I have an old oversized 6 iron and I hit it very good so I decided to try the oversized Quantum’s and I glad I did they are much better for me than my AI smoke HL irons

JB7953

Assume Clubs

Purchased the Quantaum OS Irons because the driver was so good. Irons feel great, not harsh or clankie, pure butter!! If you know what I mean

Rojo

Buy Them Now

Excellent irons. On my first round hit the ball great. They are so good I am having to figure out my new longer distances.

KVHI

I Like!

I like them! I like the feel of the larger cavity-back design.

Crawl

Received incentive

Calloway

Dealing with Calloway was breeze, I will definitely purchase from them again. Played one round with the clubs and so far so good, everything as advertised. My swing is much slower than it used to be and I was having an issue getting the ball up, so far they have seemed to help….im ready for my next round.

Read All Reviews (189)