Mizuno MP20 HMB Irons

NEW! A full set of performance hybrid irons – in a sharp ‘tour ready’ profile. Inspired by the proliferation of long iron replacements on tour –the MP20 HMB extends the concept right through to wedge. Built upon the ball speed of Mizuno’s Chromoly Face and Neck, supported by a precision stainless steel body and Tungsten weighting. Layered with soft Copper plating and protective Nickel Chrome for legendary feel and feedback. Like the MMC, the HMB (Hot Metal Blade) is a multi-material offering, but that’s where most of the similarities end.

In recent years, there has been a flood of only partially forged heads stamped FORGED to hit the market. Some of that is almost certainly done with the intent to deceive, so Mizuno wants to be fully transparent about that fact that not every piece of HMB head is forged. The MP-20 HMB features a Grain Flow Forged face and neck laser welded to a stainless-steel back piece. The company’s thinking is that if you’re going to affix forged parts to cast parts, it just makes sense that a softer forged piece is the one that makes contact with the ball.

As you progress through the set, the construction of the iron evolves. The HMB’s 2-7 irons are Grain Flow Forged from Chromoly 4135. It’s nearly the same material used to cast the Hot Metal and Hot Metal Pro. The primary difference is a bit more carbon steel, which in addition to making the iron feel a bit softer, is a necessity for forging Chromoly.

The 2-7 also feature two 12-gram pieces of tungsten fixed within the cavity. As you should know by now, its purpose is to drive mass low and back for higher launch. The Tungsten isn’t anchored directly to the sole. Instead, Mizuno raised it just a bit to give the sole a bit of room to flex and help maintain ball speed on low face strikes.

Unlike the FLI-HI which featured a single Tungsten weight, HMB’s Tungsten is evenly distributed between the toe and heel. Mizuno found that for some players, the toe weight caused excessive droop (toe down) leading into impact. The new design should work better for those players without hurting those of you who didn’t have any issues.

The HMB 8-iron offers the same Chromoly 4135 construction without the Tungsten weights. The 9-PW are partial hollow designs. Unlike the rest of the set, they’re Grain Flow Forged HD from 1025E. As with the rest of the MP-20 family, the HMBs feature a copper underlay for enhanced feel.

Mizuno is billing HMB as offering a variant of the CORTECH face technology it uses in its Hot Metal offerings, but the implementation here is entirely different. While Hot Metal and Hot Metal Pro faces are designed to maximize ball speed, Mizuno effectively inverted its face technology to dial back speed at the center of the face. Instead of maximizing center speed, the goal is to provide more consistent speed. It’s a not so subtle difference which should appeal to better golfers – and that’s a detail that shouldn’t get lost here. While HMB’s construction is similar to what you’ll find in an increasing number of Game Improvement and Players Distance Offerings, the HMB isn’t that. It is, in every respect, an iron for better players.

“It’s not designed to be the biggest, most forgiving, whatever…,” says Chris Voshall. “It looks like a muscleback at address.”

Thin topline, compact body; check and check. The construction creates a wider sole, but that makes perfect sense given that the primary point of differentiation between the HMB and the MMC is ball flight. I should also mention that Mizuno aggressively bevels the sole to allow it to move through the turf like a thinner-soled iron.

As further proof that HMB isn’t a Game-Improvement or Distance offering cleverly slid into the MP lineup, it needs to be pointed out that the MOI of the MMC and HMB are effectively the same. Because of the deeper center of gravity placement, the HMB can be expected to fly appreciably higher than the MMC – and that’s precisely the point.

For those planning on building an MP-20 combo set; in the long and middle irons, the choice isn’t between compact and clunky. If you want higher trajectory, you want HMB, if you’re looking for a more penetrating ball flight, MMC is the better option. Either way, you get an iron that looks like an MP iron is supposed to look.

Available in RH #2 to #9, PW.   Left handed: 3&4 only then the LH MP20 in #5 to PW.

Call, text (403-528-7007) or email for pricing.

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