Callaway Quantum Max OS Golf Irons Steel Shafts Left Handed

The Callaway Quantum Max OS Irons blends confidence with maximum forgiveness, powerful speed, and consistent carry - all in an oversized shape designed to help golfers hit the ball more solid across the face. 

Quantum Max OS is built for higher launch and maximum forgiveness, all in an oversized shape that inspires confidence at address.

A next generation Ai-optimised 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.

Quantum Max OS's 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.

Quantum irons utilise Progressive Tri-Sole Design that 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. 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.

Fitted as standard with the Project X Denali Frost Silver and Mitsubishi Chemical Vanquish shafts, and the Golf Pride Tour Velvet 360 grip.