Ascending mass
Weight climbs club by club, from 73 grams in the R 3-iron to 90 grams in the S wedge.
Midweight MMT irons with weight that climbs into the scoring clubs
Mitsubishi Chemical · Iron ShaftsThe MMT AMC Blue Series combines Metal Mesh Technology with Mitsubishi's Ascending Mass Concept. This midweight, mid-launch, mid-spin set gains weight through the bag, so long irons stay easier to swing while short irons carry more mass for control. SpeedMesh, a micro 304 stainless steel mesh in the butt section, adds torsional stability, shaft recovery and energy transfer.

Why golfers choose it
Weight climbs club by club, from 73 grams in the R 3-iron to 90 grams in the S wedge.
Micro 304 stainless mesh, described as 75 percent lighter and thinner than standard, supports torsional stability and recovery.
Mid launch and mid spin cover a broad range of players who want steady strikes from long irons to wedge.
Product details
| Brand | Mitsubishi Chemical |
|---|---|
| Model | MMT AMC Blue Series |
| Product type | Iron shaft |
| Launch / spin | Mid / mid |
| Weights | 73 to 90 grams (85 R and 85 S) |
| Flexes | R, S |
| Torque | 2.8 to 3.6 |
| Tip OD | 0.355 in taper |
| Butt OD | 0.600 in |
| Lengths | 36.5 to 40.5 in (club specific) |
Choose 85 R or 85 S, then order one shaft per club number from #2 to #W; each shaft is built for its position, so no tip trimming is needed. Mitsubishi recommends 85 R for driver speeds of 81 to 90 mph and 85 S for 91 to 105 mph. The 2-iron is offered in S only.
Product questions
Grater Golf support
Tell us your irons, swing speed and ball flight, and we’ll help you choose the right Mitsubishi shaft, weight and flex, then build your set.
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