Glock 19 vs 23 Size Comparison
The Glock 23 is the same length, 0.04 in (1 mm) taller and the same width than the Glock 19. With an empty magazine it weighs 3.04 oz (86 g) more. It holds 13 rounds in a standard magazine to the 19's 15. Both drawn to scale from Glock's published dimensions.
Glock 19 vs 23 side by side
Glock A
Glock B
Side profile
From behind
- Slide width
- 1 in1.08 in
- Glock 23 is 0.08 in (2 mm) wider
- Overall width, with controls
- 1.34 in1.34 in
- Same
Tap the drawing to flip between the Glock 19, the Glock 23 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.
Plan your Glock in the Glock builder: slide, barrel, trigger and sights, each checked for fit. Open the Glock builder →
Quick answer
The Glock 23 is the same length, 0.04 in (1 mm) taller and the same width than the Glock 19. With an empty magazine it weighs 3.04 oz (86 g) more. It holds 13 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 23: 7.28 in long, 5.08 in tall, 1.34 in wide, 4.02 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 23 bigger?
The Glock 23 is the bigger pistol. Against the Glock 19 it is 0.04 in (1 mm) taller.
Glock 19 vs 23 dimensions
| Dimension | Glock 19 | Glock 23 | B vs A |
|---|---|---|---|
| Overall length | 7.28 in185 mm | 7.28 in185 mm | Same |
| Slide length | 6.85 in174 mm | 6.85 in174 mm | Same |
| Barrel length | 4.02 in102 mm | 4.02 in102 mm | Same |
| Height with magazine | 5.04 in128 mm | 5.08 in129 mm | +0.04 in1 mm |
| Overall width, with controls | 1.34 in34 mm | 1.34 in34 mm | Same |
| Slide width | 1 in25 mm | 1.08 in27 mm | +0.08 in2 mm |
| Trigger reach | 2.76 in70 mm | 2.76 in70 mm | Same |
| Weight, empty magazine | 23.63 oz670 g | 26.67 oz756 g | +3.04 oz86 g |
| Capacity, standard magazine | 15 rounds | 13 rounds | −2 |
| Caliber | 9mm | .40 S&W | Different |
| Glock catalog | Current model | Current model |
Glock 19 vs 23 grip length
The Glock 23 stands 0.04 in (1 mm) taller than the Glock 19 with a magazine in (5.08 in against 5.04 in), and the trigger reach is the same, 2.76 in (70 mm).
Glock 19 vs 23 barrel and slide length
Both carry a 4.02 in (102 mm) barrel. The slides are the same length, 6.85 in (174 mm).
Will a Glock 23 fit a Glock 19 holster?
Probably not well. The slides differ in width by 0.08 in (2 mm), and molded holsters retain on the slide. Holster makers mold for exact models, so check the maker's fit list before you buy.
Is the Glock 23 compact or subcompact?
Glock puts the Glock 23 in its compact 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 23 today?
Glock 19 in stock
In stock now. One listing per model family.
Glock 23 in stock
In stock now. One listing per model family.
More Glock 19 and 23 comparisons
Frequently Asked Questions
How much smaller is the Glock 19 than the Glock 23?
0 in (0 mm) shorter, 0.04 in (1 mm) lower and 0 in (0 mm) narrower, by Glock's published dimensions.
Which is lighter, the Glock 19 or the Glock 23?
The Glock 19, by 3.04 oz (86 g) with an empty magazine: 23.63 oz (670 g) against 26.67 oz (756 g) for the Glock 23.
Which holds more rounds, the Glock 19 or the Glock 23?
The Glock 19: 15 rounds in a standard magazine against 13 for the Glock 23, as Glock's spec pages list them.
Where do these Glock 19 and Glock 23 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 23 Size Comparison”, https://gunpartpicker.net/tools/glock-size-comparison/glock-19-vs-23. Data from the GunPartPicker catalog and real community builds, prices checked November 11, 2026. Free to cite with attribution.
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