Callaway Apex MB 21 vs Callaway Apex 21
Side-by-side factory specifications. Differing values are highlighted.
Specification comparison
| Club | Apex MB 21 loft | Apex 21 loft | Apex MB 21 lie | Apex 21 lie | Apex MB 21 length | Apex 21 length |
|---|---|---|---|---|---|---|
| 3 | 20.5 | 19 | 60 | 60 | 39 | 39 |
| 4 | 23 | 21 | 60.5 | 60.5 | 38.5 | 38.5 |
| 5 | 26 | 23.5 | 61 | 61 | 38 | 38 |
| 6 | 30 | 26.5 | 61.5 | 61.5 | 37.5 | 37.5 |
| 7 | 34 | 30.5 | 62 | 62 | 37 | 37 |
| 8 | 38 | 34.5 | 62.5 | 62.5 | 36.5 | 36.5 |
| 9 | 42 | 38.5 | 63 | 63 | 36 | 36 |
| PW | 46 | 43 | 63.3 | 63.5 | 35.75 | 35.75 |
| AW | 50 | 48 | 63.5 | 63.5 | 35.5 | 35.5 |
Highlighted cells differ between the two sets. Lofts and lies are factory standard.
Lofts compared
- Apex MB 21
- Apex 21
What the differences mean
At the 7-iron, the Apex MB 21 is 34° and the Apex 21 is 30.5°, a 3.5° gap. Each degree of loft is worth roughly 3 to 4 yards of carry at the same swing speed, so the Apex 21 should carry roughly 10 to 14 yards further with that club, on a slightly lower, shallower flight than the Apex MB 21. Across the 9 clubs both sets share, the Apex 21 averages 2.8° stronger, with the largest gap at the 6-iron (30° vs 26.5°). The pitching wedges are 46° and 43°; the stronger one leaves a 7° jump to a 50° gap wedge, which matters when planning wedge gapping.
The Apex MB 21 is a blade iron and the Apex 21 a players distance iron, so they sit 2 steps apart on the forgiveness scale. The Apex 21 is the more forgiving design, with a wider sole, more offset and more perimeter weighting for roughly 5 to 15 handicaps who want extra distance from a compact head. The Apex MB 21 trades some of that for a more compact head, thinner topline and more control over flight and shape, which suits low single-digit handicaps who strike the ball consistently.
The Apex MB 21 is listed as forged muscle back and the Apex 21 as forged, multi-material. Both use tungsten weighting to lower the centre of gravity and steady the head on off-centre strikes. The Apex MB 21's muscle-back shape keeps mass directly behind the strike for feedback and control, where a cavity spreads it to the perimeter for forgiveness.
The Apex 21 came out 1 year after the Apex MB 21, but it is a different line rather than a direct replacement, so the two were designed for different golfers as well as different seasons.
Which should you choose?
The Apex 21 is the stronger-lofted set — up to 3.5° stronger than the Apex MB 21 on matching clubs. Expect longer carry per numbered iron but a flatter descent angle; gapping at the wedge end is where that shows up.
Both charts are reproduced in full on their own pages: Callaway Apex MB 21 specs and Callaway Apex 21 specs.
Frequently asked questions
Is the Callaway Apex MB 21 stronger lofted than the Apex 21?
No. The Apex 21 is the stronger-lofted set: its 7-iron is 30.5° against 34° for the Callaway Apex MB 21, 3.5° stronger and worth roughly 10 to 14 yards of extra carry.
What is the loft difference between the Callaway Apex MB 21 and Apex 21?
At the 7-iron the difference is 3.5° (34° vs 30.5°). The largest gap on a shared club is 3.5° at the 6-iron, and all 9 shared clubs differ.
Which is better for higher handicap golfers, the Callaway Apex MB 21 or the Apex 21?
The Apex 21. As a players distance iron it is the more forgiving design, suited to roughly 5 to 15 handicaps who want extra distance from a compact head. The Callaway Apex MB 21 is a blade iron, better suited to low single-digit handicaps who strike the ball consistently.
Do the Callaway Apex MB 21 and Apex 21 have the same lie and length?
At the 7-iron, yes: both are 62° lie and 37 inches long.
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