Glock 20 vs 29 Size Comparison
The Glock 29 is 1.14 in (29 mm) shorter, 0.98 in (25 mm) lower and the same width than the Glock 20. With an empty magazine it weighs 1.59 oz (45 g) less. It holds 10 rounds in a standard magazine to the 20's 15. Both drawn to scale from Glock's published dimensions.
Glock 20 vs 29 side by side
Glock A
Glock B
Side profile
From behind
- Slide width
- 1.12 in1.12 in
- Same
- Overall width, with controls
- 1.38 in1.38 in
- Same
Tap the drawing to flip between the Glock 20, the Glock 29 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 29 is 1.14 in (29 mm) shorter, 0.98 in (25 mm) lower and the same width than the Glock 20. With an empty magazine it weighs 1.59 oz (45 g) less. It holds 10 rounds in a standard magazine to the 20's 15.
- Glock 20: 8.07 in long, 5.51 in tall, 1.38 in wide, 4.61 in barrel. Glock 29: 6.93 in long, 4.53 in tall, 1.38 in wide, 3.78 in barrel.
One square is one inch. Real Glock photos sized to Glock's published dimensions, checked September 27, 2026.
Is the Glock 20 or 29 bigger?
The Glock 20 is the bigger pistol. Against the Glock 29 it is 1.14 in (29 mm) longer and 0.98 in (25 mm) taller.
Glock 20 vs 29 dimensions
| Dimension | Glock 20 | Glock 29 | B vs A |
|---|---|---|---|
| Overall length | 8.07 in205 mm | 6.93 in176 mm | −1.14 in29 mm |
| Slide length | 7.52 in191 mm | 6.69 in170 mm | −0.83 in21 mm |
| Barrel length | 4.61 in117 mm | 3.78 in96 mm | −0.83 in21 mm |
| Height with magazine | 5.51 in140 mm | 4.53 in115 mm | −0.98 in25 mm |
| Overall width, with controls | 1.38 in35 mm | 1.38 in35 mm | Same |
| Slide width | 1.12 in28 mm | 1.12 in28 mm | Same |
| Trigger reach | 2.85 in72 mm | 2.85 in72 mm | Same |
| Weight, empty magazine | 28.4 oz805 g | 26.81 oz760 g | −1.59 oz45 g |
| Capacity, standard magazine | 15 rounds | 10 rounds | −5 |
| Caliber | 10mm Auto | 10mm Auto | Same |
| Glock catalog | Current model | Law enforcement catalog; retail stock still sells |
Glock 20 vs 29 grip length
The Glock 29 stands 0.98 in (25 mm) lower than the Glock 20 with a magazine in (4.53 in against 5.51 in), and the trigger reach is the same, 2.85 in (72 mm).
Glock 20 vs 29 barrel and slide length
The Glock 29 barrel is 0.83 in (21 mm) shorter: 3.78 in against 4.61 in. Its slide is 0.83 in (21 mm) shorter (6.69 in against 7.52 in).
Will a Glock 29 fit a Glock 20 holster?
It will go in, but loose. The Glock 29 slide is 0.83 in (21 mm) shorter than the Glock 20, so a molded Glock 20 holster may not retain it. Holster makers mold for exact models, so check the maker's fit list before you buy.
Is the Glock 29 compact or subcompact?
Glock puts the Glock 29 in its subcompact large frame class and the Glock 20 in its full size large frame 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 20 or 29 today?
Glock 20 in stock
In stock now. One listing per model family.
Glock 29 in stock
No Glock 29 in stock at the stores we track today.
More Glock 20 and 29 comparisons
Frequently Asked Questions
How much smaller is the Glock 29 than the Glock 20?
1.14 in (29 mm) shorter, 0.98 in (25 mm) lower and 0 in (0 mm) narrower, by Glock's published dimensions.
Which is lighter, the Glock 20 or the Glock 29?
The Glock 29, by 1.59 oz (45 g) with an empty magazine: 26.81 oz (760 g) against 28.4 oz (805 g) for the Glock 20.
Which holds more rounds, the Glock 20 or the Glock 29?
The Glock 20: 15 rounds in a standard magazine against 10 for the Glock 29, as Glock's spec pages list them.
Where do these Glock 20 and Glock 29 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 20 vs 29 Size Comparison”, https://gunpartpicker.net/tools/glock-size-comparison/glock-20-vs-29. Data from the GunPartPicker catalog and real community builds, prices checked November 11, 2026. Free to cite with attribution.
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