Who’s It For: Golfers who want maximum forgiveness and confidence at address, with an oversized shape that delivers high launch, powerful speed, and consistent carry.
Modern 360° Undercut: Advanced cavity design delivers faster ball speeds, higher launch, and more forgiveness across the face.
Progressive Tri-Sole Design: Promotes cleaner turf interaction and consistent contact from long irons to wedges.
Ai-Optimized Face: Expands the sweet spot for faster speeds and tighter dispersion based on real-world impact patterns.
Urethane Microspheres: Absorb vibration for improved sound and feel, creating a forged-like sensation at impact.
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
Club
Loft
Loft
Lie
Length
Offset (mm)
4
19.0°
21.0°
60.375°
39.125"
6.35
5
22.0°
24.0°
61.00°
38.50"
5.89
6
25.0°
27.0°
61.625°
37.875"
5.41
7
29.0°
31.0°
62.25°
37.25"
4.80
8
33.0°
35.0°
62.875°
36.625"
4.19
9
37.0°
39.0°
63.50°
36.00"
3.56
PW
42.0°
44.0°
63.75°
35.75"
2.79
AW
47.0°
49.0°
64.00°
35.50"
2.21
GW
51.0°
53.0°
64.00°
35.50"
1.65
SW
55.0°
57.0°
64.00°
35.25"
1.12
REVIEWS
4.8
100%
Recommended
319 Reviews
JTB70
2 days ago
It Was Time For An Upgrade!!!
I moved from 2006 Big Berthas to the Quantum Max complete set and I am very happy with the technology upgrade - I am seeing a 15 yard increase per club so that is a thing I am getting used to - but its a bad problem to have.
Tom46
2 days ago
Good Customization
[This review was collected as part of a promotion.] I bought a set of irons 2 months ago and just added an A wedge to fill the space between the PW and my 50-degree GW. I liked the ability to customize the clubs - I'm a senior and am losing swing speed, so I had them bent 1 degree stronger; plus mid-size grips and 2 tape wraps. When I swing correctly, I get very good results and usually very good stopping action on the approaches to the greens.
Johnny M
3 days ago
Great Irons. Increased Distance.
[This review was collected as part of a promotion.] I purchased these irons a couple of months ago ago and I am sorry I didn’t do it sooner. I never had confidence in my iron play but now I do. They have a great feel and range. My friend tried mine and then went out a got his own.
Vashon
4 days ago
New Irons
[This review was collected as part of a promotion.] I am happy with the new irons. I wish I would have switch irons earlier
dave2733
5 days ago
Love The Irons
[This review was collected as part of a promotion.] I bought these irons over the summer and they are fantastic. They have the right balance of performance and forgiveness for a 10-handicap golfer.
Richard43
6 days ago
Tried Them But Was Disappointed
Purchased these clubs seeking distance and forgiveness, but found them disappointing in both cases. Went back to my Elyte Fast irons, they were much better in my opinion.
Ozzy
1 week ago
Quantum Max
Great feel and great distance from the quantum line up.
Alberto1234
1 week ago
You Will Not Be Disappointed
A step up from my previous irons. So far they are solid. Beautiful sound at contact and easy to work with. 👍
PK_Wrinkles
1 week ago
Great Clubs
[This review was collected as part of a promotion.] Great clubs. I’m getting more distance with the same swing as aways.
SK44
1 week ago
Hits Straight
I bought a month ago and I’m getting more distance withe forgiveness.
Kml2894
1 week ago
Solid Performer.
[This review was collected as part of a promotion.] Purchased a little over a month ago. Replaced my old but effective Steelheads. It has taken a bit to get use to subtle differences, going from steel shafts to graphite. Clean lines. I would say more forgiving than the previous set. Love the ball flight.
KLN517
1 week ago
[This review was collected as part of a promotion.] I purchased the Quantum Max OS Irons about 1 month ago. They are absolutely easy to hit. They allow the ball to fly high and land soft. They have already helped lower my scores and make the game of golf more enjoyable.
Mike222
1 week ago
New Quantum Club Purchase
I bought the Callaway Quantum iron and woods a month ago. Have been able to get 5 rounds in with them. Very smooth swinging and the ball comes off the club head nicely. Been a nice change from my older Pings
Kirchoff
1 week ago
New Quantum Max Os Irons.
Have played about 5 rounds with my new quantum max os irons. Scores are steadily coming down. Very true and straight. I always feel I know where the shots going..
Sox Jr
2 weeks ago
They Feel Better When Swinging Than My Past Clubs
[This review was collected as part of a promotion.] I have been pleased with these clubs more than any other that I have owned previously