Armaguerra OG-43
- Category
- Submachine Gun
- Barrel
- Not recorded
- Weight, empty
- 3.18 kg
- Introduced
- 1943
About
What it is, and why it matters
The Armaguerra OG-43 was an Italian 9x19mm Parabellum submachine gun designed by Giovanni Oliani and built in small numbers by Societa Anonima Revelli Manifattura Armi Guerra (Armaguerra) of Cremona in the Italian Social Republic during World War II. Of advanced stamped sheet-metal construction, it fired from an open bolt in both semi-automatic and full-automatic modes; the bulk of its L-shaped bolt and recoil spring were housed in a cylinder above the barrel, and the magazine housing doubled as the pistol grip. It fed from double-stack detachable box magazines of 10, 20, 30 or 40 rounds and used a forward-folding metal stock, with adjustable iron sights set for 100 or 200 meters.
The OG-43 was one of the earliest submachine guns to route its magazine up through the pistol grip - a compact layout that would later make the Israeli Uzi and Beretta Model 12 famous nearly two decades afterward.
Manufactured only in small numbers. The refined OG-44 variant used a more conventional fixed wooden stock attached to the pistol grip, was slightly heavier, and measured about 787 mm overall; its construction was approved by the Ministry of War but full production never began before the war ended. Muzzle velocity (~480 m/s) and rate of fire (~500 rpm) are approximate figures from period sources.
Specification
Everything measured
IdentityWhat it is, who built it and when.
- Manufacturer
- Societa Anonima Revelli Manifattura Armi Guerra
- Category
- Submachine Gun
- Country
- Italy
- Status
- Out of production
- Produced
- 1943 to 1945
DimensionsAs issued, without a magazine or an optic.
- Overall length
- 720 mm
- Weight, empty
- 3.18 kg
ActionHow it cycles, what trips it, and what feeds it.
- Action
- Blowback
- Firing mechanism
- Open bolt
- Trigger
- Single stage
- Capacity
- 40
- Magazine
- Detachable box
MaterialsEach swatch is the material itself, not a colour chosen to stand for it.
- Frame
- Steel
- Barrel
- Steel
- Stock
- Steel
BallisticsFrom the service cartridge, not a handload.
- Muzzle velocity
- 480 m/s
- Effective range
- 150 m
- Maximum range
- 200 m
- Rate of fire
- 500 rpm
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.
Magazine housing serves as pistol grip
Stamped sheet metal construction
L shaped bolt and recoil spring in cylinder above barrel
Open bolt operation
Forward folding metal stock
Adjustable iron sights 100 200m
Select fire
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 201 9x19mm Parabellum submachine guns | 3.18 kg | 3.18 kg | Near the median |
| Overall lengthAmong 200 9x19mm Parabellum submachine guns | 720 mm | 723 mm | Near the median |
| Magazine capacityAmong 204 9x19mm Parabellum submachine guns | 40 | 32 | Holds more rounds than about 90% |
Answers
Questions about the Armaguerra OG-43
How much does the Armaguerra OG-43 weigh?
The Armaguerra OG-43 weighs 3.18 kg (7.01 lb) empty.
What caliber is the Armaguerra OG-43?
The Armaguerra OG-43 is chambered in 9x19mm Parabellum.
How many rounds does the Armaguerra OG-43 hold?
The Armaguerra OG-43 holds 40 rounds, fed from a detachable box magazine.
How long is the Armaguerra OG-43?
The Armaguerra OG-43 is 720 mm (28.3 in) long overall.
Who makes the Armaguerra OG-43?
The Armaguerra OG-43 is made by Societa Anonima Revelli Manifattura Armi Guerra (Italy). It was designed by Giovanni Oliani.
When was the Armaguerra OG-43 introduced?
The Armaguerra OG-43 was introduced in 1943 and discontinued in 1945.
How does the Armaguerra OG-43 operate?
The Armaguerra OG-43 uses a blowback action, and its firing mechanism is open bolt.
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
- Italian Social Republic (RSI)
- 1943
Provenance
Confidence in this record
62%
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/armaguerra-og-43' \ --header 'X-API-Key: your_key'{ "id": "armaguerra-og-43", "name": "Armaguerra OG-43", "manufacturer": { "id": "armaguerra", "name": "Societa Anonima Revelli Manifattura Armi Guerra", "countryCode": "IT", "foundedYear": 1937, "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": "8d782db1d8b308e0f97e04a8429edc2dc6674b17831aa2f74f8de8d720bc564a" }, "category": { "id": "submachine-gun", "name": "Submachine Gun", "description": "Automatic firearms chambered in pistol calibers" }, "country_of_origin": "IT", "year_introduced": 1943, "barrel_length_mm": null, "weight_empty_g": 3180, "action_type": "blowback"}