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CALLAWAY QUANTUM MAX OS CUSTOM IRONS
CALLAWAY
CALLAWAY QUANTUM MAX OS CUSTOM IRONS
2026 Model · Tour-Level Performance Iron · Custom-Fit at GRG
CALLAWAY
QUANTUM MAX OS
Custom-Fit
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The CALLAWAY QUANTUM MAX OS CUSTOM Irons deliver Callaway's innovative AI-designed technology in a package built to help you play better golf. With industry-leading face optimization and premium construction, these irons provide the distance, forgiveness, and consistency you need to improve your scores and enjoy every round.
Callaway's commitment to innovation means these irons benefit from the most advanced computational design in golf, delivering optimized performance across the entire face. The result is more consistent distances, better misses, and improved scoring from every iron in the set.
Pro Tip from Gregg Rogers Golf: Pair your CALLAWAY QUANTUM MAX OS CUSTOM Irons with a shaft from our premium fitting matrix, and play the Titleist Pro V1 ball for precise spin and distance control.
CALLAWAY QUANTUM MAX OS Technology
Oversize game-improvement profile with larger heads and increased offset for confidence and accuracy Modern 360° Undercut Cavity with extreme perimeter weighting and exposed undercut for face-wide speed Next Generation AI-Optimized Face delivers consistent launch, spin, and dispersion across the face Progressive Tri-Sole Design adapts geometry from long irons to wedges for smooth turf interaction
CALLAWAY QUANTUM MAX OS Specifications The 2026 Quantum Max OS is the oversize variant of Callaway's GI flagship, pairing the 360° Undercut Cavity and AI-Optimized Face with larger profile and increased offset for maximum forgiveness.
Spec 4-Iron 5-Iron 6-Iron 7-Iron 8-Iron 9-Iron PW AW GW SW
Loft (°) 19 22 25 29 33 37 42 47 51 55
Lie (°) 60.375 61.00 61.625 62.25 62.875 63.50 63.75 64.00 64.00 64.00
Offset (mm) 6.35 5.89 5.41 4.80 4.19 3.56 2.79 2.21 1.65 1.12
Length (in) 39.125" 38.50" 37.875" 37.25" 36.625" 36.00" 35.75" 35.50" 35.50" 35.25"
SteelFiber i110 - Regular (110g) SteelFiber i110 - Stiff (110g) SteelFiber i110 - X-Stiff (110g) SteelFiber i70 - Senior (70g) SteelFiber i70 - Regular (70g) SteelFiber i70 - Stiff (70g) SteelFiber i80 - Senior (80g) SteelFiber i80 - Regular (80g) SteelFiber i80 - Stiff (80g) SteelFiber i80 - X-Stiff (80g) SteelFiber i95 - Regular (95g) SteelFiber i95 - Stiff (95g) SteelFiber i95 - X-Stiff (95g)
Aldila Ascent PL - Ladies (65g) Aldila Ascent PL - Senior (65g) Aldila Ascent PL - Regular (65g) Aldila Ascent PL - Stiff (65g)
Axiom 105 - Stiff (105g) Axiom 105 - X-Stiff (105g) Axiom 125 - X-Stiff (125g) Axiom 75 - Regular (R2) (75g) Axiom 75 - Regular (75g) Axiom 75 - Stiff (75g) Axiom 95 - Regular (95g) Axiom 95 - Stiff (95g) Speeder NX TCS - Stiff (75g) Ventus TR Blue - Stiff (75g)
Tour AD-105 - Stiff (105g) Tour AD-105 - X-Stiff (105g) Tour AD-115 - Stiff (115g) Tour AD-115 - X-Stiff (115g) Tour AD-55 - Regular (55g) Tour AD-55 - Stiff (55g) Tour AD-65 - Regular (65g) Tour AD-65 - Stiff (65g) Tour AD-75 - Regular (75g) Tour AD-75 - Stiff (75g) Tour AD-85 - Regular (85g) Tour AD-85 - Stiff (85g) Tour AD-95 - Regular (95g) Tour AD-95 - Stiff (95g) Tour AD-95 - X-Stiff (95g)
KBS S-Taper - Regular (115g) KBS S-Taper - Regular (R+) (115g) KBS S-Taper - Stiff (120g) KBS S-Taper - Stiff (S+) (125g) KBS S-Taper - X-Stiff (130g) KBS S-Taper Lite - Regular (100g) KBS S-Taper Lite - Regular (R+) (102g) KBS S-Taper Lite - Stiff (105g) KBS S-Taper Lite - Stiff (S+) (107g) KBS S-Taper Lite - X-Stiff (110g) KBS C-Taper - Regular (115g) KBS C-Taper - Regular (R+) (117g) KBS C-Taper - Stiff (120g) KBS C-Taper - Stiff (S+) (125g) KBS C-Taper - X-Stiff (130g) KBS C-Taper Lite - Regular (105g) KBS C-Taper Lite - Regular (R+) (107g) KBS C-Taper Lite - Stiff (110g) KBS C-Taper Lite - Stiff (S+) (112g) KBS C-Taper Lite - X-Stiff (115g) KBS Max - Regular (95g) KBS Max - Stiff (100g) KBS Max 85 MT - Regular (85g) KBS Max 85 MT - Stiff (85g) KBS Max Lite - Ladies (70g) KBS Max Lite - Senior (75g) KBS Max Lite - Regular (80g) KBS Max Lite - Stiff (85g) KBS Tour - Regular (110g) KBS Tour - Regular (R+) (115g) KBS Tour - Stiff (120g) KBS Tour - Stiff (S+) (125g) KBS Tour - X-Stiff (130g) KBS Tour Lite - Regular (95g) KBS Tour Lite - Stiff (100g) KBS Tour Lite - X-Stiff (105g) KBS Tour V - Regular (105g) KBS Tour V - Stiff (110g) KBS Tour V - X-Stiff (115g) KBS PGI 100 - X-Stiff (100g) KBS PGI 50 - Ladies (50g) KBS PGI 60 - Senior (60g) KBS PGI - Regular (70g) KBS PGI 80 - Stiff (80g) KBS PGI 90 - Stiff (S+) (90g) KBS TGI Tour - Regular (95g) KBS TGI Tour - Stiff (95g) KBS TGI Tour - X-Stiff (95g)
MMT 105 - Regular (105g) MMT 105 - Stiff (105g) MMT 125 - Stiff (125g) MMT 125 - X-Stiff (TX) (125g) MMT 50 - Ladies (50g) MMT 55 - Senior (59g) MMT 60 - Senior (60g) MMT 60 - Regular (60g) MMT 65 - Regular (65g) MMT 70 - Regular (70g) MMT 75 - Regular (75g) MMT 75 - Stiff (75g) MMT 80 - Stiff (80g) MMT 85 - Regular (85g) MMT 85 - Stiff (85g) MMT 95 - Stiff (95g)
Modus 105 - Regular (105g) Modus 105 - Stiff (105g) Modus 105 - X-Stiff (105g) Modus 115 - Regular (115g) Modus 115 - Stiff (115g) Modus 115 - X-Stiff (115g) Modus 120 - Regular (120g) Modus 120 - Stiff (120g) Modus 120 - X-Stiff (120g) Modus 120 - X-Stiff (TX) (126g) Modus 125 - Regular (125g) Modus 125 - Stiff (125g) Modus 125 - X-Stiff (125g) Modus 130 - Regular (130g) Modus 130 - Stiff (130g) Modus 130 - X-Stiff (130g) NS Pro 850 - Regular (85g) NS Pro 850 - Stiff (85g) NS Pro 950GH Neo - Regular (95g) NS Pro 950GH Neo - Stiff (SR) (97g) NS Pro 950GH Neo - Stiff (95g) NS Pro 950GH Neo - X-Stiff (104g)
PX IO - Regular (5.5.0) (105g) PX IO - Stiff (6.0) (110g) PX IO - Stiff (6.5.0) (115g) PX LS - Stiff (6.0) (120g) PX LS - Stiff (6.5.0) (125g) PX LS - X-Stiff (7.0) (130g) PX LZ - Regular (5.5.0) (115g) PX LZ - Stiff (6.0) (120g) PX LZ - Stiff (6.5.0) (125g) PX Red - Regular (5.5.0) (110g) PX Red - Stiff (6.0) (110g) PX Red - Stiff (6.5.0) (120g) PX Rifle - Regular (5.5.0) (125g) PX Rifle - Stiff (6.0) (130g) PX Rifle - Stiff (6.5.0) (135g) PX Rifle - X-Stiff (7.0) (130g)
AMT Black - Regular (110g) AMT Black - Stiff (120g) AMT Red - Regular (95g) AMT Red - Stiff (105g) DG 105 - Regular (105g) DG 105 - Stiff (105g) DG 105 - X-Stiff (105g) DG 120 - Regular (R300) (120g) DG 120 - Stiff (S300) (120g) DG 120 - X-Stiff (X100) (120g) DG Mid 100 - Regular (100g) DG Mid 100 - Stiff (100g) DG Mid 115 - Regular (115g) DG Mid 115 - Stiff (115g) DG Tour Issue - X-Stiff (X100) (130g) DG Tour Issue - Stiff (S400) (130g) DG - Regular (R300) (130g) DG - Stiff (S300) (130g) DG - Stiff (S400) (132g) DG - X-Stiff (X100) (130g) DG X7 - Stiff (S300) (130g) DG X7 - X-Stiff (X100) (130g) Elevate 85 - Regular (85g) Elevate 85 - Stiff (85g) Elevate MPH - Regular (95g) Elevate MPH - Stiff (95g)
Recoil Dart 105 - Regular (105g) Recoil Dart 105 - Stiff (105g) Recoil Dart 105 - X-Stiff (105g) Recoil Dart 55 - Senior (55g) Recoil Dart 55 - Regular (55g) Recoil Dart 55 - Stiff (55g) Recoil Dart 65 - Senior (65g) Recoil Dart 65 - Regular (65g) Recoil Dart 65 - Stiff (65g) Recoil Dart 75 - Senior (75g) Recoil Dart 75 - Regular (75g) Recoil Dart 75 - Stiff (75g) Recoil Dart 90 - Regular (90g) Recoil Dart 90 - Stiff (90g) Recoil Dart 90 - X-Stiff (90g) Recoil Dart 55 HDC - Senior (55g) Recoil Dart 55 HDC - Regular (55g) Recoil Dart 65 HDC - Senior (65g) Recoil Dart 65 HDC - Regular (65g) Recoil Dart 65 HDC - Stiff (65g) Recoil Dart 75 HDC - Regular (75g) Recoil Dart 75 HDC - Stiff (75g) Recoil Dart 90 HDC - Stiff (90g) Recoil Dart ESX 50 - Ladies (50g) Recoil Dart ESX 50 - Senior (50g) Recoil Dart ESX 60 - Senior (60g) Recoil Dart ESX 60 - Regular (60g) Recoil Dart ESX 70 - Regular (70g) Recoil Dart ESX 70 - Stiff (70g) Recoil Dart ESX 80 - Regular (80g) Recoil Dart ESX 80 - Stiff (80g) Dart V 90 - Regular (90g) Dart V 90 - Stiff (90g) Dart V 90 - X-Stiff (90g) Dart V 105 - Stiff (105g) Dart V 105 - X-Stiff (105g) Dart V 120 - Stiff (120g) Dart V 120 - X-Stiff (120g)
