JPX 921 Forged FASTER. FORGED. FIRST The JPX 921 Forged iron integrates the power of Chromoly into a full-body Forged iron for the very first time. Initially applied in Mizuno's Hot Metal irons - Chromoly has made the cross over to a Mizuno's forgings with staggering results. The fastest ball speeds Mizuno has ever produced from a fully Forged iron - a treat for both the senses and the scorecard. FORGED IN HIROSHIMA JAPAN Grain Flow Forged HD at our legendary facility - for an identifiable and u