Modern 360 ° Undercut Cavity

At the core of the Quantum Max OS is Callaway’s Modern 360 ° Undercut Cavity. This advanced two-piece construction uses extreme perimeter weighting and a fully exposed undercut to increase face flex where golfers need it most. The design delivers faster ball speeds, higher launch, and increased forgiveness across the face, particularly on strikes that miss the centre.

Next Generation Ai-Optimised Face Design

The Next Generation Ai-Optimised Face intelligently shapes face geometry based on real-world impact patterns. By expanding the effective sweet spot, it produces more consistent ball speed, launch, and spin, helping shots carry more predictably and reducing distance loss on off-centre strikes.

Progressive Tri-Sole Design

The Progressive Tri-Sole Design adapts sole geometry throughout the set to promote cleaner turf interaction and efficient speed retention. Wider soles in the long irons help get the ball airborne more easily, while progressively refined soles in the mid and short irons improve control and consistency through impact, even on heavier strikes.

Urethane Microspheres

Urethane Microspheres are integrated into the head to absorb unwanted vibration at impact. This refines sound and feel, delivering a softer, more forged-like sensation despite the high-speed, game-improvement construction of the iron.

Oversized, Confidence-Inspiring Shape

Quantum Max OS features a generous profile designed to inspire confidence at address. The oversized shape supports higher launch and maximum forgiveness, helping golfers commit to the swing and make more consistent contact throughout the set.

On-Course Performance

On the course, the Quantum Max OS irons produce a high, stable launch with strong carry and controlled spin. Long irons are noticeably easier to elevate, while mid and short irons provide dependable distance control into the greens. Off-centre strikes retain ball speed and direction more effectively than expected, helping maintain scoring opportunities even when contact quality varies.

Who It Suits

The Quantum Max OS irons are ideal for golfers seeking the highest level of forgiveness and easy launch in the Quantum range. They suit players who want help striking the ball more consistently, benefit from an oversized profile, or prioritise confidence and reliability over compact shaping or workability.

Specifications