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Callaway · Iron set · 2026

Callaway Quantum Max OS irons

Super game improvement, 4.5 of 5 for forgiveness

Callaway's oversized super game improvement iron, with 4.8 mm of offset at the 7-iron, a three-part sole and Callaway's highest forgiveness rating in the family.

Side view to scale: 4.8 mm offset

4.5 of 5 forgiveness score

$1,099.99 at Golf Discount7 irons (4-PW) · checked 2 Nov

Check price at Golf Discount See it at Callaway

Used from $831.99 at 2nd Swing Golf7 clubs (6-PW, AW, GW), steel, stiff flex, average condition · checked 31 Oct

Also sold new at GlobalGolfRock Bottom Golf (searches for Callaway Quantum Max OS)

Choose it if

  • You often catch it thin or heavy and want the most help an iron gives.
  • Your iron shots start right or fly low: 4.8 mm of offset gives the face more time to square.
  • You play left-handed: it is sold left-handed.
  • You need a softer shaft: it comes in R2 (Light), the flex Callaway's buying guide calls senior.

Choose something else if

Class
Super game improvement
7-iron loft
29°
Offset (7-iron)
4.8 mm
Sole
Standard
Stock flexes
Regular or stiff
Hands
Left or right
Price
$1,099.99 at Golf Discount, 7 irons (4-PW), checked 2 Nov

Callaway Quantum Max OS, Quantum Max Fast or Apex Ai300?

Callaway iron sets side by side
DetailQuantum Max OS this pageQuantum Max FastApex Ai300
Forgiveness score4.5 of 54.5 of 53.0 of 5
ClassSuper game improvementSuper game improvementGame improvement
7-iron loft29°28°29°
Offset, 7-iron4.8 mm4.7 mm4.0 mm
SoleTri-SoleTri-SoleDynamic Sole Design
FlexesR · SCallaway's own lightweight flex: R2A · R · S
HandsRH · LHRHRH · LH
Price$1,099.99 at Golf Discount, checked 2 Nov$1,249.99 at Golf Discount, checked 2 Nov$1,260 at Golf Discount, checked 2 Nov

Compare these 3 in full · Callaway Quantum Max vs Quantum Max OS irons

What changed from the Elyte X

Both are Callaway's oversized iron of their year, rated Highest for forgiveness on Callaway's own chart. The Quantum Max OS has a degree weaker 7-iron (29° against 28°) and more offset (4.8 mm at the 7-iron against 4.0 mm), and replaces the Elyte X's Speed Frame with an undercut cavity and its Ai 10x face with Callaway's next Ai face design.

Golf Discount still sells the Elyte X new at about the Quantum Max OS's price a club, and used sets cost less; this page shows the prices. Choose the Elyte X for an oversized, forgiving set bought used; choose the Quantum Max OS for more offset against a slice and the newest face.

The Callaway Elyte X and the Quantum Max OS that replaced it: specifications as Callaway publishes them, prices as the shops showed them
Detail Elyte X (previous) Quantum Max OS (current)
ClassSuper game improvementSuper game improvement
Forgiveness score4.5 of 54.5 of 5
7-iron loft28°29°
Offset at the 7-iron4.0 mm4.8 mm
SoleTri-Sole Design, wider than the Elyte'sTri-Sole
Stock flexesSenior to stiffRegular or stiff
HandsLeft or rightLeft or right
Price new$949.99 at Golf Discount, 6 irons (5-PW), checked 2 Nov$1,099.99 at Golf Discount, 7 irons (4-PW), checked 2 Nov
Price usedFrom $704.99 at 2nd Swing Golf (6 clubs (6-PW, AW), steel, regular flex, average condition), checked 31 OctFrom $831.99 at 2nd Swing Golf (7 clubs (6-PW, AW, GW), steel, stiff flex, average condition), checked 31 Oct

Older Callaway models in this line

Each one's own page sets it beside the Quantum Max OS, row by row, and says what changed.

Class and forgiveness score as on each model's page; prices as the shops showed them.

Build a whole bag around it, or check the lofts in the bag you carry.

Use the iron finder to compare sets for your usual miss, and check the set makeup and loft gaps before ordering. Between a game improvement and a super game improvement head, this is how to tell which one your strike needs.

Quantum Max OS: the questions buyers ask

Is the Callaway Quantum Max OS forgiving?
Yes. It is Callaway's super game improvement iron, with 4.8 mm of offset at the 7-iron and a 29° 7-iron. It scores 4.5 of 5 on our reading of what Callaway publishes about it; the most forgiving iron sets we cover score 5.0.
Who is the Quantum Max OS for?
It suits golfers who often catch it thin or heavy and want the most help an iron gives.
Does the Quantum Max OS come in senior or ladies flex?
Senior, yes, as Callaway names it: R2 (Light), the flex its buying guide calls senior. Callaway lists R2 (Light), regular (R) and stiff (S).
Is the Quantum Max OS sold left-handed?
Yes: Callaway sells it left- and right-handed.
Which clubs come in a Quantum Max OS set?
4-iron to 9-iron, PW, AW, GW and SW, left- or right-handed.
How much does the Quantum Max OS cost?
$1,099.99 at Golf Discount, 7 irons (4-PW), checked 2 Nov. Used from $831.99 at 2nd Swing Golf, checked 31 Oct. Prices change; the seller's page has today's.

How the 4.5 adds up

The forgiveness score is our reading of what Callaway publishes about the head, from 1 to 5. It is not a test result. How every score works.

The parts of the forgiveness score
PartPointsWhy
Head class 4 Super game improvement: the biggest, most forgiving iron head a maker sells.
Offset +0.5 4.8 mm at the 7-iron, at or above our 4.5 mm mark.
Sole +0 Callaway describes the sole ("Progressive Tri-Sole Design") but not as wide.
Forgiveness score4.5of 5

The score rates the head only. Hand, flex and price decide which version you buy, not how forgiving it is.

Specification sheet

As Callaway publishes it; a dash means the maker does not state it.
MakerCallaway
ModelQuantum Max OS
Model year2026
TypeIron set
ClassSuper game improvement
Handicap range the maker states–
Offset4.80 mm at the 7-iron (6.35 mm in the 4-iron down to 1.12 mm in the SW)
SoleCallaway's Tri-Sole design, shaped differently through the set.
Moment of inertia (MOI)–
Face technologyNext Generation Ai-Optimized Face Design; Modern 360° Undercut Cavity; Urethane Microspheres
ConstructionCallaway calls it an oversized super game improvement iron with its highest forgiveness and a higher launch; a high-launch (HL) build is available to order.
Set makeup4-iron to 9-iron, PW, AW, GW and SW, left- or right-handed.
Clubs in the set–
Stock steel shaftsTrue Temper Elevate Black 85
Stock graphite shaftsTrue Temper Denali Frost Silver 60/70, Mitsubishi Chemical Vanquish 50
Stock flexesR (regular), S (stiff)
7-iron loft29°
HandsRH, LH
Men's or women'sMen's
List price (MSRP)$1,099.98 · checked 6 Sep
Price at Golf Discount$1,099.99 · checked 2 Nov
What the price buys4-iron to PW, right-handed, True Temper Elevate 95 steel shafts, regular flex
Price for 7 clubs$1,099.99 · at Golf Discount, checked 2 Nov

Compare with other super game improvement irons

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Other super game improvement irons
Sole Hand Where to buy
5.0 Super game improvement 28° 4.8 mm Wider A · R · S · X RH · LH $1,299.99 at PGA TOUR Superstore 7 irons (5-9, PW, UW) · checked 2 Nov
Check price at PGA TOUR Superstore See it at PING
5.0 Super game improvement 32° 4.6 mm Wide L · A · R · S · X RH · LH $749.95 at PXG 5 clubs (7-iron to sand wedge) at $149.99 each · checked 2 Nov
See it at PXG
5.0 Super game improvement 32° 4.6 mm Wide L · A · R · S · X RH · LH $749.95 at PXG 5 clubs (7-iron to sand wedge) at $149.99 each · checked 2 Nov
See it at PXG
5.0 Super game improvement 31° 5.7 mm Wider: 23.9 mm at the 7-iron R · S RH $962.50 at Mizuno 7 irons · checked 2 Nov
See it at Mizuno Check price on Amazon Amazon's price may differ
4.5 Super game improvement 29° 2.5 mm Wide, sculpted A · R · S RH · LH $599.99 at Tour Edge 7 irons · checked 2 Nov
See it at Tour Edge
4.5 Super game improvement 29.5° 5.2 mm Skid sole, more bounce A · R · S · X RH · LH $999 at Cobra 7 irons · checked 2 Nov
Buy at Cobra Check price on Amazon Amazon's price may differ
4.5 Super game improvement 29.5° 5.2 mm Skid sole L RH · LH $1,099 at Cobra 7 irons · checked 2 Nov
Buy at Cobra Check price on Amazon Amazon's price may differ
4.5 Super game improvement not published not published Wide R · S RH · LH $799.99 at Wilson 7 irons · checked 2 Nov
See it at Wilson Check price on Amazon Amazon's price may differ
4.5 Super game improvement 28° 4.7 mm Tri-Sole not published RH $1,249.99 at Golf Discount 7 irons (5-PW, AW) · checked 2 Nov
Check price at Golf Discount See it at Callaway
4.0 Super game improvement 32.5° 4.2 mm Tour V.T. Sole A · R · S RH · LH $1,099.98 at Srixon 7 irons at $157.14 each · checked 2 Nov
See it at Srixon Check price on Amazon Amazon's price may differ

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Order: Forgiveness score first; on a tie, the set more golfers can buy, then a set that includes the long irons, then price. Use the arrows to sort. A dash means the maker does not publish it.

See all iron sets on the most forgiving irons page, or compare this club side by side. Waiting for a sale? The Black Friday golf club deals page has the price to beat on every club we price.

Sources

The specification comes from these pages; open the maker's page before buying, because prices and shaft options change. Check the exact shaft and hand at the shop before ordering.