In P770, engineers worked to deliver a true Tour iron for highly skilled players while simultaneously providing playability improvements that create a great playing experience. P770 features a uniquely forged 1025 carbon steel face/hosel and precision-milled faces and grooves along with 70-gram tungsten back-bar weighting in the mid and long irons (3-7) and a one-piece forged cavity back construction in the short irons (8-AW) for added feel and control. The P770 iron has higher MOI for ball speed consistency, thus more forgiveness, and has a lower center of gravity, which creates a higher launch angle than its predecessors. The result is a high-performance iron with improved playability and great sound & feel.