How about Mizuno's MP-69 Irons 3-9P for sale?
The Mizuno MP-69 is targeted at Tour Players and low handicap amateurs. The Mizuno MP-69 is a muscleback set, evolved from the Mizuno MP-68. The Mizuno MP-69s feature a slightly more pronounced toe design that has not been seen in a Mizuno set since the MP-32s.
The MP-69 irons are designed with precision craftsmanship to maintain the standards MP players have come to expect. Mizuno incorporates a newly developed 4D Muscle design to further optimize the set, resulting in a consistent sweet spot height throughout the line that creates predictable penetrating trajectory. This 4D Technology combined with Grain Flow Forging gives players shot and ball control, and ultimate feel. Utilizing Harmonic Impact Technology (H.I.T.), Mizuno scientifically tunes the sound of each club head to further enhance the feel.