Callaway Quantum Max OS Irons - Graphite The Callaway Quantum Max OS Steel Irons are engineered to deliver exceptional forgiveness, strong ball speed, and dependable carry distances in an oversized, confidence-boosting design. Built for golfers who want easier launch and more consistent strikes, these game-improvement irons help maintain performance across the entire face. MODERN 360-DEGREE UNDERCUT CAVITY DESIGN The Modern 360-degree Undercut Cavity is designed to maximise face flex for faster ball speeds and higher launch. Its advanced two-piece construction combines extreme perimeter weighting with a fully exposed undercut, enhancing forgiveness and distance on both centred and off-centre strikes. PROGRESSIVE TRI-SOLE DESIGN The Progressive Tri-Sole Design supports cleaner turf interaction and improved consistency throughout the set. With reworked sole geometry that progresses from long irons to wedges, it helps retain speed and launch while reducing the impact of heavy contact. NEXT-GENERATION AI-OPTIMISED FACE DESIGN Developed using real-world impact data, the Next-Generation Ai-Optimised Face promotes faster ball speeds with more consistent launch, spin, and dispersion. By expanding the effective hitting area, it helps golfers produce straighter, more predictable iron shots. URETHANE MICROSPHERES FOR ENHANCED FEEL Urethane Microspheres are strategically integrated into the clubhead to absorb unwanted vibration at impact. This improves sound and feel, delivering a softer, forged-like sensation while maintaining the speed and forgiveness expected from a high-MOI iron. OVERSIZED, CONFIDENCE-INSPIRING SHAPE Designed to promote higher launch and maximum forgiveness, the Quantum Max OS irons feature an oversized profile that inspires confidence at address. Ideal for golfers seeking easy distance and improved consistency, they deliver reliable performance across the full set. Specifications ClubLoftHL Spec*LieLengthOffset (mm)LH Availability 4 18° 20° 60.375° 39.125" 6.35 Yes 5 21° 23° 61° 38.5" 5.89 Yes 6 24° 26° 61.625° 37.875" 5.41 Yes 7 28° 30° 62.25° 37.25" 4.80 Yes 8 32° 34° 62.875° 36.625" 4.19 Yes 9 36° 38° 63.5° 36" 3.56 Yes PW 41° 43° 63.75° 35.75" 2.79 Yes AW 46° 48° 64° 35.5" 2.21 Yes GW 50° 52° 64° 35.5" 1.65 Yes SW 55° 57° 64° 35.25" 1.12 Yes Shaft Specifications Quantum Max OS Iron Shaft Specifications ShaftFlexWeightLaunchSpin True Temper Denali Frost Silver 60 Regular 60g Mid-High Mid-High True Temper Denali Frost Silver 70 Stiff 70g Mid-High Mid-High Mitsubishi Chemical Vanquish 50 R2 50g High High Grip Specifications ModelSizeCoreWeight Lamkin Crossline 360 Standard .580" 38g
