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

255 Reviews

Wayne O

Love How These Irons Appear Addressing The Ball

I made two errors when I purchased the irons; 1) I specified Winn Black Wrap Oversized Grips that were too soft and light in weight thus elevating my Swing Weight and allowing for improper alignment of the club face. So, I changed the Winn grips to Golf Pride Midsize MCC+4 Align with 3 total layers of tape, this change lowered my Swing Weight to C8, thus increasing my Swing Speed. 2) When I ordered the irons, I requested they be built ½ over standard length while overlooking the irons were already ¼ inch over and adding another ½ was not the thing to do. I caught my mistake and had the clubs shortened ¼ of an inch with the new grips, what a difference. great ball flight thru all of the irons. Thank you, Callaway for your continued support of the "Club Golfer."

Psulion

Received incentive

Quantum Irons

I am very happy with clubs so far. Ordering them was quick and easy too.

Kapehu

Good Solid Design.

I bought this a couple of month ago and am happy I did. I’ve used it at least once/twice a week and consistently hitting it well.

Cowboy67

Received incentive

By far the best club's iv ever bought, very satisfied

tel57

Received incentive

Qitel

I love my Quantum Irons. I purchased the 5 thru 9 Irons, and the P-A-G Wedges. I spent time at the range dialing in the wedges, and I am seeing a 10 Yard improvement with my 5 thru 9 irons, and 8-10 yards with the wedges. The accuracy I am getting is beyond belief. Friends have switched to Callaway after seeing the accuracy I am seeing.

Mike1973

Received incentive

Great Clubs Starting Out

Beginner golfer and decided to try these out. Very happy with them.

Big Chief

Received incentive

Max Os Irons

I bought these Irons in August and I have been very satisfied with them. Now I am back to hitting my mark.

JRGMD

Excellent Clubs, Excellent Service

I was able to trade in my old irons and got a complete set of these new Quantum irons. So far, the best thing that I have done for my game. These clubs are elegant, and strike pure.

Tommcatt

Received incentive

Great Clubs

These irons are fantastic and I would highly recomend them to anyone who truely wants a great iron.

JoeyJ

Received incentive

Best Company Ever!

Walt was so easy to deal with, and the shipping was really fast. Oh, and did I mention, I LOVE the Quantum Max OS irons. Thanks Callaway!

Paul K

Great Irons !

I bought the Quantum Max OS irons a few weeks ago. I have been playing 1-2 a week with old hand me down .Titleist irons. I was curious about the new technology in the game improvement irons so I tried them out and was amazed at the feel and distance. I have gained 15-20 yards per club and have much better control of my shots . Wish I bought these much earlier in the year ! Thank you Callaway!

JamesT

New Irons

Replaced paradym irons and am very pleased with the change. A bit heavier but more forgiving.

Jayhawk08

Quantum

I love the Quantum. Long, straight and high. I’ll be even happier if my trade-in money is processed.

Art7709

Great 5i

Im not a very strong hotter but the fact i can get the distance of my 3 wood on this 5iron is just what i needed since i constantly hit down im more consistent with my irons love the feel

jeffmo

Received incentive

Quantum Iron Upgrade

I bought this a moth ago after using the Callaway club selector tool replacing a 12 year old club. I am hitting at least 10-20 yards further with the 7 iron. Great advice and purchase

Read All Reviews (255)