Alkartasuna Ruby
- Category
- Pistol
- Barrel
- 89 mm
- Weight, empty
- 850 g
- Introduced
- 1915
About
What it is, and why it matters
The Alkartasuna Ruby is a Spanish blowback semi-automatic pistol chambered in .32 ACP, one of the many Ruby-type sidearms produced in the Basque town of Guernica during the First World War. Built by Fabrica de Armas Alkartasuna, it follows the Eibar pattern derived from John Browning's FN Model 1903: a fixed-barrel straight-blowback action, a nine-round detachable box magazine fed through a heel release, an external extractor, slide grasping grooves and a safety lever above the trigger. Alkartasuna was among the firms contracted to supply the French Army's enormous demand for inexpensive service pistols, and some late examples were made with an extended barrel and revised front sight.
A loophole in Spanish patent law let small Basque workshops copy Browning's pistol freely, and when France desperately needed sidearms in 1915 these Eibar makers, Alkartasuna among them, flooded the front with inexpensive .32 ACP Rubies built to no single common standard.
Alkartasuna pistols are marked with the 'Alkar' and 'Kapitan' trade names and an AK manufacturer code. Quality varied widely across the dozens of Eibar workshops; collectors generally regard Alkartasuna as one of the better-made Ruby contractors.
Specification
Everything measured
IdentityWhat it is, who built it and when.
- Manufacturer
- Fabrica de Armas Alkartasuna, SA
- Category
- Pistol
- Country
- Spain
- Status
- Discontinued
- Produced
- 1915 to 1922
DimensionsAs issued, without a magazine or an optic.
- Barrel
- 89 mm
- Overall length
- 155 mm
- Height
- 110 mm
- Width
- 30 mm
- Sight radius
- 120 mm
- Weight, empty
- 850 g
- Weight, loaded
- 950 g
ActionHow it cycles, what trips it, and what feeds it.
- Action
- Blowback
- Firing mechanism
- Hammer fired
- Trigger
- Single action
- Capacity
- 9
- Magazine
- Detachable box
MaterialsEach swatch is the material itself, not a colour chosen to stand for it.
- Frame
- Steel
- Slide
- Steel
- Barrel
- Steel
- Stock
- Wood
- Finish
- Blued
BallisticsFrom the service cartridge, not a handload.
- Muzzle velocity
- 300 m/s
- Muzzle energy
- 200 J
- Effective range
- 25 m
- Maximum range
- 100 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.
No load solved for this record yetThe flight path is computed from a cartridge and a bullet. This record has no ammunition filed against its chambering, so there is nothing to solve.
Features
What it has
What the record lists as fitted, drawn from the catalogue.
External extractor
Heel magazine release
Slide grasping grooves
Fixed sights
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 123 .32 ACP pistols | 850 g | 670 g | Heavier than about 90% |
| Overall lengthAmong 124 .32 ACP pistols | 155 mm | 155 mm | Near the median |
| Barrel lengthAmong 126 .32 ACP pistols | 89 mm | 87 mm | Longer than about 70% |
| Magazine capacityAmong 127 .32 ACP pistols | 9 | 8 | Holds more rounds than about 80% |
Answers
Questions about the Alkartasuna Ruby
How much does the Alkartasuna Ruby weigh?
The Alkartasuna Ruby weighs 850 g (1.87 lb) empty and 950 g (2.09 lb) loaded.
What caliber is the Alkartasuna Ruby?
The Alkartasuna Ruby is chambered in .32 ACP.
How many rounds does the Alkartasuna Ruby hold?
The Alkartasuna Ruby holds 9 rounds, fed from a detachable box magazine.
How long is the Alkartasuna Ruby?
The Alkartasuna Ruby is 155 mm (6.10 in) long overall, with a 89 mm (3.50 in) barrel.
Who makes the Alkartasuna Ruby?
The Alkartasuna Ruby is made by Fabrica de Armas Alkartasuna, SA (Spain).
When was the Alkartasuna Ruby introduced?
The Alkartasuna Ruby was introduced in 1915 and discontinued in 1922.
How does the Alkartasuna Ruby operate?
The Alkartasuna Ruby uses a blowback action, and its firing mechanism is hammer 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
- French Army
- 1915
Provenance
Confidence in this record
60%
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/alkartasuna' \ --header 'X-API-Key: your_key'{ "id": "alkartasuna", "name": "Alkartasuna Ruby", "manufacturer": { "id": "alkartasuna", "name": "Fabrica de Armas Alkartasuna, SA", "countryCode": "ES", "foundedYear": 1914, "website": null, "logoUrl": null, "description": null, "status": null, "defunctYear": null, "stateOwned": null, "makesFirearms": null, "parentId": null, "predecessorId": null, "createdAt": "2026-06-21 23:00:46", "updatedAt": "2026-06-21 23:00:46", "version": "216da24b812e5dfa05372db5e9c50ea7c18c6841c9c6ee4cb9d3850803e740cc" }, "category": { "id": "pistol", "name": "Pistol", "description": "Handguns designed to be fired with one or two hands" }, "country_of_origin": "ES", "year_introduced": 1915, "barrel_length_mm": 89, "weight_empty_g": 850, "action_type": "blowback"}