Glock 23 vs 27 Size Comparison
The Glock 27 is 0.86 in (22 mm) shorter, 0.87 in (22 mm) lower and 0.04 in (1 mm) narrower than the Glock 23. With an empty magazine it weighs 2.82 oz (80 g) less. It holds 9 rounds in a standard magazine to the 23's 13. Both drawn to scale from Glock's published dimensions.
Glock 23 vs 27 side by side
Glock A
Glock B
Side profile
From behind
- Slide width
- 1.08 in1.08 in
- Same
- Overall width, with controls
- 1.34 in1.3 in
- Glock 27 is 0.04 in (1 mm) narrower
Tap the drawing to flip between the Glock 23, the Glock 27 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 27 is 0.86 in (22 mm) shorter, 0.87 in (22 mm) lower and 0.04 in (1 mm) narrower than the Glock 23. With an empty magazine it weighs 2.82 oz (80 g) less. It holds 9 rounds in a standard magazine to the 23's 13.
- Glock 23: 7.28 in long, 5.08 in tall, 1.34 in wide, 4.02 in barrel. Glock 27: 6.42 in long, 4.21 in tall, 1.3 in wide, 3.43 in barrel.
One square is one inch. Real Glock photos sized to Glock's published dimensions, checked September 27, 2026.
Is the Glock 23 or 27 bigger?
The Glock 23 is the bigger pistol. Against the Glock 27 it is 0.86 in (22 mm) longer, 0.87 in (22 mm) taller and 0.04 in (1 mm) wider.
Glock 23 vs 27 dimensions
| Dimension | Glock 23 | Glock 27 | B vs A |
|---|---|---|---|
| Overall length | 7.28 in185 mm | 6.42 in163 mm | −0.86 in22 mm |
| Slide length | 6.85 in174 mm | 6.42 in163 mm | −0.43 in11 mm |
| Barrel length | 4.02 in102 mm | 3.43 in87 mm | −0.59 in15 mm |
| Height with magazine | 5.08 in129 mm | 4.21 in107 mm | −0.87 in22 mm |
| Overall width, with controls | 1.34 in34 mm | 1.3 in33 mm | −0.04 in1 mm |
| Slide width | 1.08 in27 mm | 1.08 in27 mm | Same |
| Trigger reach | 2.76 in70 mm | 2.76 in70 mm | Same |
| Weight, empty magazine | 26.67 oz756 g | 23.85 oz676 g | −2.82 oz80 g |
| Capacity, standard magazine | 13 rounds | 9 rounds | −4 |
| Caliber | .40 S&W | .40 S&W | Same |
| Glock catalog | Current model | Law enforcement catalog; retail stock still sells |
Glock 23 vs 27 grip length
The Glock 27 stands 0.87 in (22 mm) lower than the Glock 23 with a magazine in (4.21 in against 5.08 in), and the trigger reach is the same, 2.76 in (70 mm).
Glock 23 vs 27 barrel and slide length
The Glock 27 barrel is 0.59 in (15 mm) shorter: 3.43 in against 4.02 in. Its slide is 0.43 in (11 mm) shorter (6.42 in against 6.85 in).
Will a Glock 27 fit a Glock 23 holster?
It will go in, but loose. The Glock 27 slide is 0.43 in (11 mm) shorter than the Glock 23, so a molded Glock 23 holster may not retain it. Holster makers mold for exact models, so check the maker's fit list before you buy.
Is the Glock 27 compact or subcompact?
Glock puts the Glock 27 in its subcompact class and the Glock 23 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 23 or 27 today?
Glock 23 in stock
In stock now. One listing per model family.
Glock 27 in stock
No Glock 27 in stock at the stores we track today.
More Glock 23 and 27 comparisons
Frequently Asked Questions
How much smaller is the Glock 27 than the Glock 23?
0.86 in (22 mm) shorter, 0.87 in (22 mm) lower and 0.04 in (1 mm) narrower, by Glock's published dimensions.
Which is lighter, the Glock 23 or the Glock 27?
The Glock 27, by 2.82 oz (80 g) with an empty magazine: 23.85 oz (676 g) against 26.67 oz (756 g) for the Glock 23.
Which holds more rounds, the Glock 23 or the Glock 27?
The Glock 23: 13 rounds in a standard magazine against 9 for the Glock 27, as Glock's spec pages list them.
Where do these Glock 23 and Glock 27 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 23 vs 27 Size Comparison”, https://gunpartpicker.net/tools/glock-size-comparison/glock-23-vs-27. Data from the GunPartPicker catalog and real community builds, prices checked November 11, 2026. Free to cite with attribution.
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