Product Overview: XTREME PERFORMANCE WHERE YOU NEED IT MOST 10 years in the making, new PXG 0311 XP GEN7 Irons are the greatest leap forward in irons technology and performance in PXG history. Our GEN7 XP (Xtreme Performance) model delivers an incredibly soft feel, extreme distance and extreme forgiveness for mid to high-handicap players. GEN7 XP Irons offer a slightly larger head size with a bit more offset, max out C.O.R. to the USGA limit, and feature our patented new QuantumCOR technology, new Titanium Bezel Technology, and the thinnest face in golf. Experience groundbreaking new levels of feel, forgiveness, speed, and distance with new PXG 0311 XP GEN7 Irons. Features: New Quantumcor Technology 10 years in the making, PXG's extremely lightweight new proprietary core material - QuantumCOR - helps reduce the mass of the core which enables more weight to be positioned low and to the perimeter of the backside of the clubhead, dramatically increasing MOI. Combined with PXG's variable ultrathin face technology, this enhances the COR to the USGA limit for extreme face deflection and incredible ball speed. Variable Ultra-Thin Face Since their inception, PXG irons have maintained the thinnest face in golf, and with GEN7 the face is now even thinner. Made from high-strength HT1770 maraging steel, the variable ultra-thin face measures a mere 0.050” (~1.27mm) thick. Combined with PXG’s proprietary QuantumCOR internal polymer, GEN7 Irons deliver a C.O.R. performance that pushes the USGA limit, helping increase distance and forgiveness while also enhancing sound and feel. Power Channel Technology Power Channel Technology is the proprietary U-shaped corridor built into the internal surface of the club face to increase deflection and bend in the top sector. The channel creates face movement and transfers energy to simultaneously increase launch angle, trajectory, and ball speed. Titanium Bezel Technology A lightweight titanium insert, used to provide housing for the Precision Weighting Technology, removes mass from the center of the club in order to redistribute weight to the perimeter to boost MOI. Internal Tungsten Weighting GEN7 Irons feature internal 20-gram toe mass tungsten weighting that balance the Center of Gravity (CG) location in the center of the face while boosting Moment of Inertia (MOI) to increase forgiveness. Precision Weighting Technology One large weight is located near the CG on the back of the clubhead. This large center weight can be used to achieve optimal swing weight. Unique to PXG, customers can experience the benefits of these adjustments during an in-person fitting. Weighting is not intended to be adjusted after purchase. 5X Forged Each iron is five-times forged from 8620 soft carbon steel, creating a tight grain structure that increases its strength, prolonging the life of the grooves and enhancing the overall feel and appearance. Milled Back Surface Milling the back surface of each iron is a high-precision process that reduces the wall thickness more than forging alone could achieve, to create a high-performance body design and an enhanced aesthetic.