Head to head

Glock 48 MOS vs Glock 43X MOS

By Cole Harlan, EditorUpdated Nov 5, 2026How we verifyEditorial standards

Both are slim 9mm Glocks with MOS slide cuts and the Slim Mounting Rail. They share a grip height on paper; the difference is the slide and barrel. Every figure is copied from the technical-data tables on Glock’s U.S. commercial product pages, checked November 5, 2026.

At a glance

Spec (Glock label)	GLOCK 48 MOS	GLOCK 43X MOS
Caliber	9x19 mm	9x19 mm
Mag. capacity (standard)	10	10
Mag. capacity (optional)	None listed	None listed
Barrel length	106 mm \| 4.17 inch	87 mm \| 3.41 inch
Length (overall)	185 mm \| 7.28 inch	165 mm \| 6.50 inch
Slide length	174 mm \| 6.85 inch	154 mm \| 6.06 inch
Height incl. mag.	128 mm \| 5.04 inch	128 mm \| 5.04 inch
Width (overall)	28 mm \| 1.10 inch	28 mm \| 1.10 inch
Slide width	22 mm \| 0.87 inch	22 mm \| 0.87 inch
Weight, without magazine	519 g \| 18.31 oz	461 g \| 16.26 oz
Weight, with empty magazine	584 g \| 20.60 oz	526 g \| 18.55 oz
Weight, with loaded magazine	708 g \| 24.97 oz	651 g \| 22.96 oz
Line of sight (polymer)	152 mm \| 5.98 inch	133 mm \| 5.24 inch
Trigger distance	67 mm \| 2.64 inch	67 mm \| 2.64 inch
Trigger pull	24 N	24 N
Optic adapter plates	Glock note: “does not come with adapter plates”	Glock note: “does not come with adapter plates”
Source (checked Nov. 5, 2026)	us.glock.com G48 MOS	us.glock.com G43X MOS

Glock notes that its technical data “are rounded and do not reflect tolerances.” Glock’s page for the G48 MOS says it is “of similar length and height as the compact size G19”; the G43X MOS page says it has “a short subcompact barrel length.” Neither page lists which optic footprints the MOS cut accepts, so we do not name any. We list no price.

Which to pick (on paper)

If a longer barrel and sight radius matter: the G48 MOS. Glock lists 106 mm (4.17 inch) and a 152 mm (5.98 inch) polymer line of sight, against 87 mm (3.41 inch) and 133 mm (5.24 inch).
If the lightest, shortest slim 9mm is the goal: the G43X MOS. Glock lists 165 mm (6.50 inch) overall and 651 g (22.96 oz) loaded, against 185 mm (7.28 inch) and 708 g (24.97 oz).
If capacity and grip height decide it: a tie on paper. Both list a standard 10-round magazine, 128 mm (5.04 inch) height and 28 mm width.

We have not range-tested these; facts above are from Glock’s pages.

Frequently asked questions

How much longer is the Glock 48 MOS barrel than the 43X MOS?

Glock lists a 106 mm (4.17 inch) barrel for the G48 MOS and 87 mm (3.41 inch) for the G43X MOS, about 19 mm longer.

Do the G48 MOS and G43X MOS hold the same number of rounds?

Glock lists a standard 10-round magazine for both and no optional capacity on either page.

Does the Glock 48 MOS come with optic adapter plates?

No. Glock's page states the G48 with the Modular Optic System does not come with adapter plates, and the G43X MOS page says the same.

Glock 48 MOS vs Glock 43X MOS

At a glance

Which to pick (on paper)

Frequently asked questions

Sources

Keep exploring

At a glance

Which to pick (on paper)

Frequently asked questions

Sources

Keep exploring

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