This directory holds 6 verified records in the same class and chambering as the Glock G43: 9x19mm Parabellum micro-compact pistols from 6 manufacturers. The nearest, the M&P 9 Shield Plus, sits 4 mm from the subject on published overall length; the furthest, 12 mm. They are ordered by that distance — a measured criterion, not a ranking. Nothing on this page is ranked or recommended.
The M&P 9 Shield Plus is 4 mm / 0.16 in shorter overall and 7.5 mm / 0.31 in less barrel. It lists 7 rounds more of standard capacity. 2 fields do not compare — overall height and weight — because the two sources publish them on different measurement bases.
The GX4 is ≈5.3 mm / ≈0.21 in shorter overall, ≈0.4 mm / ≈0.02 in wider, and ≈8.8 mm / ≈0.35 in less barrel. It lists 5 rounds more of standard capacity. 2 fields do not compare — overall height and weight — because the two sources publish them on different measurement bases.
The G43X is 6 mm / 0.24 in longer overall, 1 mm / 0.04 in wider, 0.5 mm more barrel, and 5 g / 0.17 oz heavier under matched conditions. It lists 4 rounds more of standard capacity. On barrel length, the published inch figures are identical, so this difference does not resolve in that unit.
The CC9 is 6 mm / 0.23 in shorter overall, 2 mm / 0.07 in narrower, and 2.5 mm / 0.09 in less barrel. It lists 6 rounds more of standard capacity. 2 fields do not compare — overall height and weight — because the two sources publish them on different measurement bases.
The Hellcat 3" Micro-Compact is ≈6.6 mm / ≈0.26 in shorter overall and ≈10.3 mm / ≈0.41 in less barrel. It lists 5 rounds more of standard capacity. 2 fields do not compare — overall height and weight — because the two sources publish them on different measurement bases.
The P365 Nitron Micro-Compact is 12 mm / 0.46 in shorter overall, the same width, and 7.76 mm / 0.31 in less barrel. It lists 4 rounds more of standard capacity. 2 fields do not compare — overall height and weight — because the two sources publish them on different measurement bases.
These are related models, not substitutes: Glock publishes these records in the same Slimline line as the G43. They are listed because a reader asking what else is like this pistol is often served by them, and kept separate because the maker's own line is a different relation from a competing model.
The G42 is chambered in .380 ACP rather than the G43's 9x19mm Parabellum, so nothing below compares their cartridges. The G42 is 8 mm / 0.32 in shorter overall, 2 mm / 0.08 in narrower, 4 mm / 0.16 in less barrel, and 115 g / 4.06 oz lighter under matched conditions. Both list 6-round standard magazines.
The G48 is 26 mm / 1.02 in longer overall, 1 mm / 0.04 in wider, 19.5 mm / 0.76 in more barrel, and 64 g / 2.25 oz heavier under matched conditions. It lists 4 rounds more of standard capacity.
How this set is derived: every record above is one the directory already publishes a side-by-side page for, so this page adds no comparability claim of its own. A record qualifies as a substitute where it is source-verified and shares both this record's chambering and its directory frame class; a frame class is assigned from the manufacturer's own published size label and never inferred from measurements, so a pistol whose maker publishes no size class appears in nobody's substitute list. Every figure behind the differences above is the manufacturer's published one, and a difference is stated only where both makers measured the field the same way.
What this page will not do: name a best choice, rank the records, or say which suits a person, a purpose, or a jurisdiction. Those depend on fit, training, lawful use and equipment this directory holds no verified data on. It lists what is comparable and what the sources publish, which is the part that can be checked.
Reference information only. Not legal, purchasing, training, carry, storage, or assembly advice. Manufacturer technical data are rounded and may change without notice.