Glock G20 SF
- Category
- Pistol
- Barrel
- 117 mm
- Weight, empty
- 775 g
- Introduced
- 2009
About
What it is, and why it matters
The Glock G20 SF is a semi-automatic pistol chambered in 10mm Auto, produced by Glock Ges.m.b.H. since 2009. This Austrian-manufactured firearm reflects the engineering traditions and quality standards of its country of origin, designed to meet the demands of both civilian and professional users in a competitive global marketplace. Featuring a 15-round magazine capacity, this pistol offers generous firepower for duty use and home defense. The striker-fired action provides a consistent trigger pull for every shot, simplifying training and reducing the manual of arms - a design philosophy that has become the dominant paradigm in modern defensive handguns. The 4.6-inch barrel provides an excellent balance between sight radius and portability, making it equally suitable for duty carry and recreational shooting. Weighing 775g (27.3 oz) empty, this firearm strikes a practical balance between manageable carry weight and sufficient mass to moderate felt recoil during shooting. The polymer frame construction reduces weight while providing a textured, ergonomic grip surface designed for secure handling in all conditions. This firearm represents its manufacturer's commitment to delivering a well-engineered, reliable product that serves the needs of discerning shooters seeking quality, accuracy, and dependable performance from a proven platform.
The Glock 20 SF was born from a simple problem: the standard G20's grip was too big for many shooters. While the 10mm Auto cartridge demanded a larger frame than Glock's 9mm and .40 S&W models, the original G20's grip circumference was a dealbreaker for anyone without large hands. The SF variant trimmed the backstrap to bring the trigger within easier reach, foreshadowing the modular backstrap system that would arrive with Gen4. For years, the G20 SF was the go-to recommendation for anyone who wanted 10mm power but couldn't comfortably wrap their hand around a standard G20.
The SF (Short Frame) design was Glock's first answer to complaints about the large grip circumference of the 10mm and .45 ACP large-frame models, predating the Gen4 modular backstrap system. The grip reduction is achieved by shortening the distance from the backstrap to the trigger, making the frame more comfortable without changing the overall width. Weight without magazine is 775g (27.34 oz). The SF variant is built on Gen3 architecture and lacks the modular backstrap, dual recoil spring, and RTF texture found on Gen4 models.
Specification
Everything measured
IdentityWhat it is, who built it and when.
- Manufacturer
- Glock Ges.m.b.H.
- Category
- Pistol
- Country
- Austria
- Status
- In production
- Produced
- 2009
- Variant of
- Ergonomic
DimensionsAs issued, without a magazine or an optic.
- Barrel
- 117 mm
- Overall length
- 205 mm
- Height
- 140 mm
- Width
- 34 mm
- Sight radius
- 172 mm
- Weight, empty
- 775 g
- Weight, loaded
- 1.13 kg
ActionHow it cycles, what trips it, and what feeds it.
- Action
- Short recoil
- Firing mechanism
- Striker fired
- Trigger
- Safe action
- Trigger pull
- 28.0 N
- Capacity
- 15
- Magazine
- Detachable box
MaterialsEach swatch is the material itself, not a colour chosen to stand for it.
- Frame
- Polymer
- Slide
- Steel
- Barrel
- Steel
- Finish
- Tenifer
BallisticsFrom the service cartridge, not a handload.
- Muzzle velocity
- 366 m/s
- Muzzle energy
- 782 J
- Effective range
- 50 m
- Maximum range
- 1500 m
Trajectory
What the round does downrange
Solved from the muzzle figures and the bullet. The dashed rule is the effective range on the record, and the crosses are the steps the solver returned.
Features
What it has
What the record lists as fitted, drawn from the catalogue.
Polymer frame
Safe action trigger
Polygonal rifling
Accessory rail
Short frame- Reduced grip circumference
Standing
How it compares
Each figure against the firearms of the same type and cartridge that record it, or of the same type where that cartridge has too few. Positions are read to the nearest tenth.
| Measurement | This firearm | Median | Position |
|---|---|---|---|
| Empty weightAmong 31 10mm Auto pistols | 775 g | 936 g | Lighter than about 70% |
| Overall lengthAmong 30 10mm Auto pistols | 205 mm | 204 mm | Longer than about 60% |
| Barrel lengthAmong 31 10mm Auto pistols | 117 mm | 117 mm | Longer than about 60% |
| Magazine capacityAmong 31 10mm Auto pistols | 15 | 10 | Holds more rounds than about 80% |
Its place in the rankings
Answers
Questions about the Glock G20 SF
How much does the Glock G20 SF weigh?
The Glock G20 SF weighs 775 g (1.71 lb) empty and 1.13 kg (2.48 lb) loaded. It is the 9th lightest of 31 10mm Auto pistols in the catalogue.
What caliber is the Glock G20 SF?
The Glock G20 SF is chambered in 10mm Auto.
How many rounds does the Glock G20 SF hold?
The Glock G20 SF holds 15 rounds, fed from a detachable box magazine.
How long is the Glock G20 SF?
The Glock G20 SF is 205 mm (8.07 in) long overall, with a 117 mm (4.61 in) barrel.
Who makes the Glock G20 SF?
The Glock G20 SF is made by Glock Ges.m.b.H. (Austria). It was designed by Gaston Glock.
When was the Glock G20 SF introduced?
The Glock G20 SF was introduced in 2009.
How does the Glock G20 SF operate?
The Glock G20 SF uses a short recoil action, and its firing mechanism is striker fired.
Compatibility
Which parts fit this firearm
Studio
Every part that mounts on this, resolved
Not a list the maker typed out: the answer comes from the mounts this firearm exposes and the interface each part needs, so it stays right when either one changes.
- Every part that mounts on any firearm in the catalogue
- Interface standards, platforms and fit overrides
- The same answers through the API and the MCP server
Requires a signed-in GunSpec account on the Studio plan. The answer is computed per part, so it is not part of the public record.
Provenance
What the record holds
Every figure above was taken from one of these pages. The confidence reflects how much of the record came from a page a claim can be checked against.
In service
- FBI
- United States
- U.S. Forest Service Law Enforcement
- United States
Provenance
Confidence in this record
89%
Stockists
Where to buy
Offers link straight to the shop. GunSpec never takes the order.
No shop has listed this firearm yet
Stock and prices come from the shops themselves. If you sell this firearm, you can list it and it appears here.
List a firearmMCP
Ask an assistant about it
The same record, reached the way a person asks for it rather than the way a program does.
Ask GunSpec
Works with
Point an MCP client at GunSpec and it answers from the catalogue rather than from memory. A free key covers the read tools.
API
The call that returns this record
The same fields, in the same units, from the same endpoint the page reads.
curl --request GET \ --url 'https://api.gunspec.io/v1/firearms/glock-g20-sf' \ --header 'X-API-Key: your_key'{ "id": "glock-g20-sf", "name": "Glock G20 SF", "manufacturer": { "id": "glock", "name": "Glock Ges.m.b.H.", "countryCode": "AT", "foundedYear": 1963, "website": "https://www.glock.com", "logoUrl": null, "description": null, "status": null, "defunctYear": null, "stateOwned": null, "makesFirearms": null, "parentId": null, "predecessorId": null, "createdAt": "2026-02-11 23:44:38", "updatedAt": "2026-02-18 03:43:49", "version": "3082b5f3edc3e54ca4f0993c68dba8c456b4f86e8759e3310ef604da566477d6" }, "category": { "id": "pistol", "name": "Pistol", "description": "Handguns designed to be fired with one or two hands" }, "country_of_origin": "AT", "year_introduced": 2009, "barrel_length_mm": 117, "weight_empty_g": 775, "action_type": "short_recoil"}