Who It's For
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.
Callaway Mens Quantum MAX OS Irons
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- Item #: P203528
- UPC: 197193840213
Callaway Mens Quantum MAX OS Irons
When forgiveness is priority number one, the Callaway Quantum MAX OS steps up. This super game-improvement iron takes the core Quantum MAX technology—the 360° Undercut Cavity, AI-optimized face, and Progressive Tri-Sole—and packages it in a noticeably larger head with more offset and a wider sole. The result is maximum confidence at address and the kind of forgiveness that keeps your misses in play and your good shots heading toward the green. If you’re a higher-handicap golfer who wants all the help you can get, the MAX OS is built for you.
Key Specs & Features
Launch
High
Forgiveness
Maximum
Shape
Oversized
Available
LH & RH
Modern 360° Undercut
The Modern 360° Undercut Cavity delivers faster ball speeds, higher launch, and more forgiveness across the face with extreme perimeter weighting and a fully exposed undercut for added flex where golfers need it most.
Ai-Optimized Face
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.
Technology
- Modern 360° Undercut Cavity: 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: 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 ball speed retention — even on heavy strikes.
- Next Generation Ai-Optimized Face Design: 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: 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: Built for higher launch and maximum forgiveness — all in an oversized shape that inspires confidence at address.
Detailed Specs
| Spec | Detail |
|---|---|
| Club Type | Iron Set |
| Face Technology | Next Gen Ai-Optimized Face |
| Cavity Type | Modern 360° Undercut Cavity |
| Stock Grip | Lamkin Crossline 360 / Lamkin ST Soft |
Quantum MAX OS Iron — Loft & Specs
| Club | Loft | HL Spec° | Lie | Length | Offset (mm) | LH Availability |
|---|---|---|---|---|---|---|
| 4 | 19° | 21° | 60.375° | 39.125" | 6.35 | Yes |
| 5 | 22° | 24° | 61° | 38.5" | 5.89 | Yes |
| 6 | 25° | 27° | 61.625° | 37.875" | 5.41 | Yes |
| 7 | 29° | 31° | 62.25° | 37.25" | 4.80 | Yes |
| 8 | 33° | 35° | 62.875° | 36.625" | 4.19 | Yes |
| 9 | 37° | 39° | 63.5° | 36" | 3.56 | Yes |
| P | 42° | 44° | 63.75° | 35.75" | 2.79 | Yes |
| A | 47° | 49° | 64° | 35.5" | 2.21 | Yes |
| G | 51° | 53° | 64° | 35.5" | 1.65 | Yes |
| S | 55° | 57° | 64° | 35.25" | 1.12 | Yes* |
* S-wedge: Custom Only.
Stock Shaft & Grip Options
Steel Shafts
- True Temper Elevate 85 — 85g (R, S)
- True Temper Denali Frost Silver — 60g (R), 70g (S)
Graphite Shafts
- Mitsubishi Chemical Vanquish — 50g (R2)
Stock Grips
- Lamkin Crossline 360
- Lamkin ST Soft
Modal Trigger