Mizuno JPX 921 Hot Metal vs JPX 919 Hot Metal
The Mizuno JPX 921 Hot Metal used from $384.99 replaced the Mizuno JPX 919 Hot Metal used from $314.99. Here is what changed, side by side, from the same sourced figures as each spec page.
What changed
- Every loft is 1° stronger on the Mizuno JPX 921 Hot Metal, 4-iron to PW; lies and lengths unchanged.
- Only the Mizuno JPX 919 Hot Metal comes in GW, SW, LW.
Club by club
Loft · lie · length, from each set's factory specs. Rows where they differ are marked.
| Club | Mizuno JPX 921 Hot Metal | Mizuno JPX 919 Hot Metal |
|---|---|---|
| 4-iron | 19° · 60° · 38.5" | 20° · 60° · 38.5" |
| 5-iron | 22° · 60.5° · 38" | 23° · 60.5° · 38" |
| 6-iron | 25° · 61° · 37.5" | 26° · 61° · 37.5" |
| 7-iron | 29° · 61.5° · 37" | 30° · 61.5° · 37" |
| 8-iron | 34° · 62° · 36.5" | 35° · 62° · 36.5" |
| 9-iron | 39° · 62.5° · 36" | 40° · 62.5° · 36" |
| PW | 44° · 63° · 35.5" | 45° · 63° · length not published |
| GW | Not in this set | 50° · 63° · 35.25" |
| SW | Not in this set | 55° · 63° · 35.25" |
| LW | Not in this set | 60° · 63° · 35.25" |
Missing an iron? Complete my set shows the irons that fit, from either generation.
From each spec page
Mizuno JPX 921 Hot Metal. Retail Sept 2020. Sold 4-GW, but no source checked gives the Hot Metal GW spec, so the GW row is left out. Not the Hot Metal Pro (same lofts, smaller head) or JPX 921 Forged
Mizuno JPX 919 Hot Metal. PW length left blank: sources conflict in Mizuno's own measure (Driving Range Heroes 35.25 in; 2nd Swing's Hot Metal and Hot Metal Pro tables 35.5 in, checked Oct 13, 2026). GW, SW and LW 35.25 in in both. SW and LW are set-matching wedges. Hot Metal Pro shares these lofts and lies
Prices
Used and new prices from the stores we list are on each model's page: Mizuno JPX 921 Hot Metal used from $384.99 · Mizuno JPX 919 Hot Metal used from $314.99. The older generation usually costs less used.
Sources: golfergeeks.com (press) and drivingrangeheroes.com (press). Checked Sep 29, 2026.