The 2025 AMT Red is the lightest weight and highest trajectory/spin option in the new AMT range. Out of the AMT range, AMT Red maximizes speed and launch most by utilizing a responsive tip design and maintaining a constant superlight weighting in 4-7 irons. Focusing more on precision and control from 8-iron through wedge, AMT Red is designed with Ascending Mass Technology-making each shaft progressively heavier by 3-gram increments as golfers move to shorter irons. This unique blend of superlight weighting in 4-7 irons and AMT weighting in the scoring clubs allows AMT Red to offer both power and precision. Fit & Design: AMT Red is the lightest weight and highest trajectory/spin option in the AMT line Maximizes speed and launch by utilizing a responsive tip design Designed with Ascending Mass Technology a " making each shaft progressively heavier by 3 gram increments as the player move to the shorter irons The unique blend of superlight weighting in the 4-7 irons and AMT weighting in the scoring clubs produces both power and precision Available in R & S Flex options