Mizuno · Irons · 2020

JPX 921 Hot Metal

Best for mid-to-high handicap players (~10-22) at moderate swing speeds (75-95 mph) who want Mizuno feel in a distance-iron package and care more about consistency than shaping shots.

Starting from: £604.99
Listings: 1
Retailers: 1
vs RRP: −16%

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Brand new

Sealed, retailer warranty

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Like new

Excellent condition / refurb

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Pre-owned, varying condition

£604.99£720.00

4-PW · Stiff · RH4-PW · Stiff · Right-Handed

£115.01

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About the Mizuno JPX 921 Hot Metal

The Mizuno JPX 921 Hot Metal is an 2020 irons from Mizuno. Listed on CaddyCompare in 5-PW, 4-PW, 5-GW and 4-GW set compositions, in right-hand and left-hand, with regular, stiff and senior flex options. Compare prices from 1 UK retailer below — currently from £604.99.

CaddyIndex™Experimental

Agentic-research score from synthesised reviews, lab tests, and head-to-head comparisons. Relative to category peers — see methodology.

86Forgiveness

88Distance

68Workability

82Feel

82Sound

76Looks

Pros & cons

Pros

Top of the 2021 game-improvement robot test on strokes-gained across long, mid and short irons.
115 mph 7-iron ball speed at 83 mph swing — fastest of the JPX 921 family in launch-monitor testing.
Harmonic Impact Design delivers crisp acoustics and solid feel uncommon among cast distance irons.
Stability Frame with toe-bias weighting protects ball speed on heel/toe strikes.

Cons

Strong lofts produce fairly low launching and low spinning trajectories — may not hold demanding pins.
Largest head and widest sole of any current Mizuno iron — looks thick to players coming from a players iron.
Piercingly straight design intent leaves little room for shaping shots either direction.

Best for: Mid-to-high handicap players (~10-22) at moderate swing speeds (75-95 mph) who want Mizuno feel in a distance-iron package and care more about consistency than shaping shots.

Avoid if: Low-handicap players who shape shots both ways or need high-spin stopping power on firm greens.