Callaway Apex 19, Apex 21 and Apex Pro 24 irons
Callaway's Apex name covers several different irons. Here's how the Apex 19, Apex 21 and Apex Pro 24 compare club by club, and which can fill a gap in your set.
By Julien Levadoux. Specs from our iron catalogue, checked September 29, 2026. Each set's page names its source.
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Loft chart, club by club
Select a set to see its lies and lengths too.
| Loft | Apex 19 (2019) used from $314.99 | Apex 21 (2021) used from $324.99 | Apex Pro 24 (2024) used from $546.25 |
|---|---|---|---|
| 3-iron | 19° | 19° | 19° |
| 4-iron | 21° | 21° | 22° |
| 5-iron | 23.5° | 23.5° | 25° |
| 6-iron | 26.5° | 26.5° | 29° |
| 7-iron | 30.5° | 30.5° | 33° |
| 8-iron | 34.5° | 34.5° | 37° |
| 9-iron | 38.5° | 38.5° | 41° |
| PW | 43° | 43° | 45° |
| AW | 48° | 48° | 50° |
| Used set, lowest price on Oct 26, 2026 | $359.99 | $429.99 | $865.48 |
— means the set has no club at that slot.
The short answer
The Apex 19 and Apex 21 are identical on paper: same loft, lie and length on every club, with a 30.5° 7-iron. A single iron from one fills a gap in the other.
The Apex Pro 24 belongs to Callaway's Apex Pro line, a different head. Its lofts are 1° to 2.5° weaker from the 4-iron down (a 33° 7-iron), so it doesn't mix with the Apex 19 or 21.
The Apex Pro 19 is the Apex Pro 24's closest match: the same loft, lie and length from the 6-iron to the 9-iron and on the AW, and the same PW loft and length (listed 0.25° more upright, 63.5°). Its 3-, 4- and 5-irons are 1° to 1.5° weaker. So for a missing 6-iron to AW, an Apex Pro 19 iron fits an Apex Pro 24 set, and the other way round.
What changed, generation to generation
| Generation | What changed |
|---|---|
| Apex 19 (2019) to Apex 21 (2021) | No change to published loft, lie or length. |
Which irons fit your set
“Identical” sets match yours on every club both make, so a single iron from one fills a gap in the other. “Same lofts” sets will fill the gap at the right loft, but check the lie or length difference with a fitter first. Either way, the head looks different from the rest of your bag.
| Your set | Identical loft, lie and length | Same lofts, lie or length differs |
|---|---|---|
| Apex 19 (2019) | Mavrik Pro (2020) used from $534.99, Apex 21 (2021), Rogue ST Pro (2022) used from $694.99 | Apex Ti Fusion (2024) used from $492.99 |
| Apex 21 (2021) | Apex 19 (2019), Mavrik Pro (2020), Rogue ST Pro (2022) | Apex Ti Fusion (2024) |
| Apex Pro 24 (2024) | None catalogued | None catalogued |
Missing one iron? Complete my set shows which clubs fill the gap, club by club.
Check the full name
Callaway sells several heads under one family name (Apex 21, Apex Pro 21, Apex DCB), so match the exact name on the sole or badge. Callaway's AW is the wedge after the PW: 48° on the Apex 19 and 21, 50° on the Apex Pro 24.
None of these figures comes straight from a Callaway spec sheet: the Apex 19's are a reproduction of Callaway's table, the Apex 21's are compiled from Callaway Pre-Owned (Callaway's own used store) and 2nd Swing, and the Apex Pro 24's come from retailer tables. Each set's page names its source.
What we haven't catalogued
The other Apex sets have their own pages: the Apex Ai200 used from $524.99 (2024, the Apex 21's successor, 0.5° stronger from the 5-iron to the 9-iron), the Ai150 used from $854.99, Ai300 used from $596.99, Ti Fusion and Ti Fusion 250 used from $944.99, the Apex DCB 21 used from $374.99, and the Apex TCB 21, CB 24 used from $102.71 and MB 24 used from $98.38, which are identical to one another on every club. The Apex TCB 24 used from $155.78 (4-iron to PW only) matches them too, and the Apex MB 21 used from $329.99 matches them except its PW lie, which Callaway lists as 63.3°. Not catalogued yet: the Apex Pro 21. If you have a Callaway spec sheet for it, send it to us (hello@usedclubfinder.com).