Compare / iron set
Live · checked today · 4 UK retailers tracked
John Letters Mm-Forged Prototype Iron Set vs Mizuno JPX 900 Forged Iron Set
Quick verdict
Checked daily across 4 UK retailers
Price and availability verdict
John Letters Mm-Forged Prototype Iron Set is currently £99.99 used, while Mizuno JPX 900 Forged Iron Set is currently £203.99 used. Against tracked history, John Letters Mm-Forged Prototype Iron Set is at its lowest tracked price and Mizuno JPX 900 Forged Iron Set is at its lowest tracked price. John Letters Mm-Forged Prototype Iron Set is currently available from 2 UK retailers, versus 3 for Mizuno JPX 900 Forged Iron Set.
John Letters
John Letters Mm-Forged Prototype Iron Set
from £99.99
at The Second Hand Golf Shop · 2 retailers
Lowest £100 · lowest price we’ve seen
Mizuno
Mizuno JPX 900 Forged Iron Set
from £203.99
at Golf Clubs 4 Cash · 3 retailers
Lowest £187 · below its usual price
Discount vs RRP
Price vs usual
Where to buy
John Letters Mm-Forged Prototype Iron Set
Where to buy
Mizuno JPX 900 Forged Iron Set
Deal intelligence
Should you buy now, or wait?
John Letters · Mm-Forged Prototype Iron Set
Not enough data yet
Mizuno · JPX 900 Forged Iron Set
Not enough data yet
Today £186.95 · usual £186.95 · lowest £186.95
Head to head
Category leaders, from the data on this page
- Cheapest new Mm-Forged Prototype £99.99 vs £203.99
- Most retailers in stock JPX 900 Forged 3 vs 2
- Cheapest used Mm-Forged Prototype from £99.99 vs £203.99
Price trajectory
How each has moved since we started tracking
Lowest tracked price per day, any condition. Caddence tracks both daily. Shaded spans are days we couldn’t collect prices — the lines break rather than guessing.
Mizuno · JPX 900 Forged Iron Set
↓ £33
since 7 August 2026
Lowest £186.95 on 18 August 2026
New vs used
From used listings we track
John Letters · Mm-Forged Prototype Iron Set
NEW £99.99
USED FROM £99.99
Mizuno · JPX 900 Forged Iron Set
NEW £203.99
USED FROM £203.99
Availability by build
Which configurations are in stock right now
| Build | John Letters Mm-Forged Prototype Iron Set | Mizuno JPX 900 Forged Iron Set |
|---|---|---|
| Stiff · Used | 2 retailers · from £99.99 at The Second Hand Golf Shop → | 1 retailer · from £203.99 at Golf Clubs 4 Cash → |
| Regular · Used | — | 2 retailers · from £229.99 at Nearly New Golf Clubs → |
| Extra Stiff · Used | — | 1 retailer · from £299.95 at Replay Golf → |
| Light · Left-hand · Used | — | 1 retailer · from £341.99 at Golf Clubs 4 Cash → |
Waiting for a better price?
Set a free alert and we’ll email you when either drops to your target.
Related iron set comparisons
More head-to-head price checks
Common questions about the John Letters Mm-Forged Prototype Iron Set vs Mizuno JPX 900 Forged Iron Set
Prices shown are the cheapest in-stock price per retailer tracked by Caddence, updated daily. Always confirm the final price on the retailer's site.