Glock G27
- Category
- Pistol
- Barrel
- 87 mm
- Weight, empty
- 676 g
- Introduced
- 1995
About
What it is, and why it matters
The Glock G27 is a subcompact semi-automatic pistol chambered in .40 S&W, introduced in 1995 alongside the 9mm G26. Built on the same subcompact frame as the G26, the G27 offers the higher energy of the .40 S&W cartridge in a package just 6.42 inches (163mm) long and 4.21 inches (107mm) tall. The standard magazine holds 9 rounds of .40 S&W, and the pistol accepts all larger-capacity Glock .40 S&W magazines from the G22 (15 rounds) and G23 (13 rounds). The 3.43-inch (87mm) barrel delivers typical .40 S&W performance with 180-grain bullets at approximately 1010 fps (308 m/s) for 546 joules of muzzle energy. The current Gen5 model features the Glock Marksman Barrel (GMB) with enhanced hexagonal rifling, nDLC finish, flared magazine well, ambidextrous slide stop lever, and modular backstrap system. The G27 weighs 23.85 ounces (676g) with an empty magazine. The Safe Action trigger system provides a consistent 26 N (~5.8 lb) pull weight. The G27 was particularly popular with law enforcement agencies that standardized on the .40 S&W caliber, serving as the subcompact companion to the full-size G22 and compact G23. While the broader market shift back to 9mm has reduced .40 S&W popularity, the G27 remains in production and retains a loyal following among shooters who prefer the harder-hitting .40 caliber in a concealable package.
The Glock 27 arrived as the .40 S&W companion to the G26, providing law enforcement agencies that standardized on the .40 caliber with a subcompact option that maintained magazine compatibility with their duty G22 and G23 pistols. During the late 1990s and 2000s, when the .40 S&W was the dominant law enforcement caliber in America, the G27 was the go-to backup weapon for thousands of officers. Though the industry-wide shift back to 9mm has reduced the .40's market share, the G27 remains a potent concealed carry option for those who prefer the .40's harder-hitting ballistics.
The Glock 27 was introduced simultaneously with the G26 in 1995. The Gen5 variant was released in 2023, making it one of the later .40 S&W models to receive the Gen5 treatment. The G27 shares its frame dimensions with the G26 (9mm), G28 (.380 ACP), G33 (.357 SIG), and G39 (.45 GAP). The slightly taller height (107mm vs 106mm for the G26) is due to the .40 S&W magazine floor plate. Weight without magazine is 621g (21.91 oz). The G27 can be converted to 9mm by swapping the barrel and using G26 magazines, and to .357 SIG by swapping the barrel alone. This caliber versatility was a major selling point for law enforcement agencies. The snappier recoil of the .40 S&W in the lightweight subcompact frame requires more training to master compared to the 9mm G26. The loaded weight includes a full 9-round .40 S&W magazine at approximately 151g. Optional 13-round G23 magazines provide extended capacity.
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
- 1995
DimensionsAs issued, without a magazine or an optic.
- Barrel
- 87 mm
- Overall length
- 163 mm
- Height
- 107 mm
- Width
- 33 mm
- Sight radius
- 137 mm
- Weight, empty
- 676 g
- Weight, loaded
- 827 g
ActionHow it cycles, what trips it, and what feeds it.
- Action
- Short recoil
- Firing mechanism
- Striker fired
- Trigger
- Safe action
- Trigger pull
- 26.0 N
- Capacity
- 9
- 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
- 308 m/s
- Muzzle energy
- 546 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.
Subcompact frame
Reversible mag release
Interchangeable backstraps
Dual recoil spring
Glock marksman barrel
Ndlc finish
Flared mag well
Ambidextrous slide stop
Accepts glock 22 23 magazines
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 75 .40 S&W pistols | 676 g | 734 g | Lighter than about 70% |
| Overall lengthAmong 75 .40 S&W pistols | 163 mm | 185 mm | Shorter than about 90% |
| Barrel lengthAmong 75 .40 S&W pistols | 87 mm | 102 mm | Shorter than about 80% |
| Magazine capacityAmong 75 .40 S&W pistols | 9 | 11 | Holds fewer rounds than about 80% |
Its place in the rankings
Answers
Questions about the Glock G27
How much does the Glock G27 weigh?
The Glock G27 weighs 676 g (1.49 lb) empty and 827 g (1.82 lb) loaded.
What caliber is the Glock G27?
The Glock G27 is chambered in .40 S&W.
How many rounds does the Glock G27 hold?
The Glock G27 holds 9 rounds, fed from a detachable box magazine.
How long is the Glock G27?
The Glock G27 is 163 mm (6.42 in) long overall, with a 87 mm (3.43 in) barrel.
Who makes the Glock G27?
The Glock G27 is made by Glock Ges.m.b.H. (Austria). It was designed by Gaston Glock.
When was the Glock G27 introduced?
The Glock G27 was introduced in 1995.
How does the Glock G27 operate?
The Glock G27 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
- U.S. Law Enforcement (Various Departments)
- United States
- U.S. Federal Bureau of Investigation (Historical)
- United States
- U.S. Civilian Concealed Carry
- United States
Provenance
Confidence in this record
91%
Stockists
Where to buy
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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-g27' \ --header 'X-API-Key: your_key'{ "id": "glock-g27", "name": "Glock G27", "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": 1995, "barrel_length_mm": 87, "weight_empty_g": 676, "action_type": "short_recoil"}