Callaway · Irons · 2026
Quantum Max OS
Best fora 15-30 HCP at 75-100mph who wants the most forgiving 2026 Callaway iron with class-leading SGI mishit support + responsive feel + quieter acoustic than the standard Quantum Max.
- Starting from
- £818.99
- Listings
- 10
- Retailers
- 4
- vs RRP
- −30%
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Sealed, retailer warranty
Free delivery
5-PW · Regular · RH5-PW · Regular · Right-Handed
at Click Golf
Excellent condition / refurb
Free delivery
5-PW · Regular · RH5-PW · Regular · Right-Handed
at Golfclubs4cash
Pre-owned, varying condition
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About the Callaway Quantum Max OS
The Callaway Quantum Max OS is an 2026 irons from Callaway. Listed on CaddyCompare in 5-GW, 4-GW, 5-PW and 4-PW set compositions, in left-hand and right-hand, with regular, stiff and senior flex options. Compare prices from 4 UK retailers below — currently from £818.99.
Price history
CaddyIndex™Experimental
Relative to category peers · methodologyPros & cons
- Extremely forgiving — dispersions no more than 15-20yd offline, edge over Elyte X
- 2026 Hot List Gold Medal + high penetrating launch that lands soft and stops
- Matches standard Quantum Max ball speed + clubhead speed in same SGI shell
- Crisp medium-pitched thwack on quiet side — improvement over standard Quantum Max's loud acoustic
- Chunky SGI shape with thicker topline + more offset + wider sole
- 0.6° higher launch trades a touch of carry for stopping power
- Oversized + high-MOI = high-launch straight bias, no shotmaking ceiling
- Incremental upgrade over Elyte X for current owners
What reviewers say
More Irons
Callaway · Irons · 2026
Quantum Max OS
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CaddyIndex™
Price History
About the Callaway Quantum Max OS
The Callaway Quantum Max OS is an 2026 irons from Callaway. Listed on CaddyCompare in 5-GW, 4-GW, 5-PW and 4-PW set compositions, in left-hand and right-hand, with regular, stiff and senior flex options. Compare prices from 4 UK retailers below — currently from £818.99.
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Qi Max HLFAQs
Who is the Callaway Quantum Max OS best for?
A 15-30 HCP at 75-100mph who wants the most forgiving 2026 Callaway iron with class-leading SGI mishit support + responsive feel + quieter acoustic than the standard Quantum Max.
Who should avoid the Callaway Quantum Max OS?
You're not in the SGI bracket (use standard Quantum Max), you need shotmaking, or you want the most refined GI shape at address.
What handicap is the Callaway Quantum Max OS suitable for?
The Callaway Quantum Max OS scores strongest for high-handicap golfers, and also suits mid-handicap golfers.
Does the Callaway Quantum Max OS have a shot bias?
The Callaway Quantum Max OS is broadly neutral in shot shape (no built-in draw or fade bias), with a high launch and mid spin.
How does the Callaway Quantum Max OS compare to the previous model?
Vs Elyte X 2025: Modern 360° Undercut Cavity replaces Elyte's standard undercut for greater sole flex + more ball speed. Slight edge in forgiveness with measurable 15-20yd dispersion cap. Progressive Tri-Sole Design adapts sole geometry from long irons to wedges. Higher penetrating launch that lands soft and stops. Same SGI design philosophy as Elyte X but with refined cavity construction + AI face update.