NEXT GENERATION STRAIGHT DISTANCE. With our new RIBCOR technology, the M4 unlocks a new level of consistency and accuracy in a product designed to be the longest in our irons lineup. Combined with our thinnest face (1.5mm), our ultra-thin leading edge, and our thin-walled Speed Pocket, M4 iron produces golf shots that are not only long, but incredibly straight.
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RIBCOR localizes face flexibility in the hitting area, transferring more energy to the ball to increase distance and accuracy.
RIBCOR stiffens the perimeter of the head creating a more rigid structure, enhancing sound and feel. RIBCOR mitigates toe flexibility for tighter dispersion.
Optimized heel & toe weighting provides an increase in MOI vs M2 17, resulting in more forgiveness. Ultra-thin leading edge works in conjunction w/the speed pocket to increase speed on low-face shots
More distance: fluted hostel and 360 Undercut allows for redistribution of mass low in the head to increase launch distance, and consistency
Aftermarket shafts: kbs max 85 and Fujikura atmos Red shafts are designed to deliver high launch and maximum ball speed