Glock 19 vs 43 Size Comparison
The Glock 43 is 1.02 in (26 mm) shorter, 0.79 in (20 mm) lower and 0.28 in (7 mm) narrower than the Glock 19. With an empty magazine it weighs 5.64 oz (160 g) less. It holds 6 rounds in a standard magazine to the 19's 15. Both drawn to scale from Glock's published dimensions.
Glock 19 vs 43 side by side
Glock A
Glock B
Side profile
From behind
- Slide width
- 1 in0.87 in
- Glock 43 is 0.13 in (3 mm) narrower
- Overall width, with controls
- 1.34 in1.06 in
- Glock 43 is 0.28 in (7 mm) narrower
Tap the drawing to flip between the Glock 19, the Glock 43 and both.
Photos: Glock 17 Gen5 photo by Tony Webster, cut out by LeoPavouk (CC BY 2.0); Glock 43X photo by Kolomaznik (CC BY 4.0); Glock 17 Gen4 photo by Steve Dock, UK Ministry of Defence (OGL v1.0) Contains public sector information licensed under the Open Government Licence v1.0. Cut out and reshaped to each model's published size by GunPartPicker.
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Quick answer
The Glock 43 is 1.02 in (26 mm) shorter, 0.79 in (20 mm) lower and 0.28 in (7 mm) narrower than the Glock 19. With an empty magazine it weighs 5.64 oz (160 g) less. It holds 6 rounds in a standard magazine to the 19's 15.
- Glock 19: 7.28 in long, 5.04 in tall, 1.34 in wide, 4.02 in barrel. Glock 43: 6.26 in long, 4.25 in tall, 1.06 in wide, 3.41 in barrel.
One square is one inch. Real Glock photos sized to Glock's published dimensions, checked September 27, 2026.
Is the Glock 19 or 43 bigger?
The Glock 19 is the bigger pistol. Against the Glock 43 it is 1.02 in (26 mm) longer, 0.79 in (20 mm) taller and 0.28 in (7 mm) wider.
Glock 19 vs 43 dimensions
| Dimension | Glock 19 | Glock 43 | B vs A |
|---|---|---|---|
| Overall length | 7.28 in185 mm | 6.26 in159 mm | −1.02 in26 mm |
| Slide length | 6.85 in174 mm | 6.06 in154 mm | −0.79 in20 mm |
| Barrel length | 4.02 in102 mm | 3.41 in87 mm | −0.61 in15 mm |
| Height with magazine | 5.04 in128 mm | 4.25 in108 mm | −0.79 in20 mm |
| Overall width, with controls | 1.34 in34 mm | 1.06 in27 mm | −0.28 in7 mm |
| Slide width | 1 in25 mm | 0.87 in22 mm | −0.13 in3 mm |
| Trigger reach | 2.76 in70 mm | 2.56 in65 mm | −0.2 in5 mm |
| Weight, empty magazine | 23.63 oz670 g | 17.99 oz510 g | −5.64 oz160 g |
| Capacity, standard magazine | 15 rounds | 6 rounds | −9 |
| Caliber | 9mm | 9mm | Same |
| Glock catalog | Current model | Current model |
Glock 19 vs 43 grip length
The Glock 43 stands 0.79 in (20 mm) lower than the Glock 19 with a magazine in (4.25 in against 5.04 in). Trigger reach, from the back of the grip to the trigger, is 2.56 in on the Glock 43 against 2.76 in on the Glock 19. The two frames are different families (double stack and slimline single stack), so the height gap is overall height, not only grip length.
Glock 19 vs 43 barrel and slide length
The Glock 43 barrel is 0.61 in (15 mm) shorter: 3.41 in against 4.02 in. Its slide is 0.79 in (20 mm) shorter (6.06 in against 6.85 in).
Will a Glock 43 fit a Glock 19 holster?
Usually not. The Glock 43 is a slimline single stack frame and a Glock 19 holster is molded around a double stack frame, so the fit and retention will be wrong. Holster makers mold for exact models, so check the maker's fit list before you buy.
Is the Glock 43 compact or subcompact?
Glock puts the Glock 43 in its subcompact slimline class and the Glock 19 in its compact class. Here is every current Glock at the same scale.
Subcompact slimline
Subcompact
Compact
Full size
Every card is to the same scale, lined up at the slide rear. Tap one to compare it or look at it alone.
Where can I buy a Glock 19 or 43 today?
Glock 19 in stock
In stock now. One listing per model family.
Glock 43 in stock
In stock now. One listing per model family.
More Glock 19 and 43 comparisons
Frequently Asked Questions
How much smaller is the Glock 43 than the Glock 19?
1.02 in (26 mm) shorter, 0.79 in (20 mm) lower and 0.28 in (7 mm) narrower, by Glock's published dimensions.
Which is lighter, the Glock 19 or the Glock 43?
The Glock 43, by 5.64 oz (160 g) with an empty magazine: 17.99 oz (510 g) against 23.63 oz (670 g) for the Glock 19.
Which holds more rounds, the Glock 19 or the Glock 43?
The Glock 19: 15 rounds in a standard magazine against 6 for the Glock 43, as Glock's spec pages list them.
Where do these Glock 19 and Glock 43 numbers come from?
From Glock's own US spec pages, checked September 27, 2026. Both guns are shown at one scale, as real Glock photos reshaped to those numbers.
Cite this tool: GunPartPicker, “Glock 19 vs 43 Size Comparison”, https://gunpartpicker.net/tools/glock-size-comparison/glock-19-vs-43. Data from the GunPartPicker catalog and real community builds, prices checked November 11, 2026. Free to cite with attribution.
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