Jarmann M1884
- Category
- Rifle
- Barrel
- 850 mm
- Weight, empty
- 4.50 kg
- Introduced
- 1884
About
What it is, and why it matters
The Jarmann M1884 was a bolt-action repeating rifle designed by Norwegian engineer Jacob Smith Jarmann, adopted by Norway and trialed/adopted in small numbers by Sweden. It used a distinctive split-bridge turn-bolt receiver fed by an 8-round Kropatschek-style tubular magazine under the barrel, with a magazine cut-off allowing single-shot use. Most production took place at Kongsberg Vaapenfabrikk in Norway.
The Jarmann action was so robust that its split-bridge mechanism was later repurposed into a Norwegian whaling harpoon gun, a rifle design that went on to hunt whales rather than men.
Superseded in Norwegian service by the Krag–Jørgensen from the mid-1890s. The original black-powder loading was later updated with smokeless powder and steel-jacketed bullets.
Specification
Everything measured
IdentityWhat it is, who built it and when.
- Manufacturer
- Kongsberg Vaapenfabrikk
- Category
- Rifle
- Country
- Norway
- Status
- Out of production
- Produced
- 1884 to 1894
DimensionsAs issued, without a magazine or an optic.
- Barrel
- 850 mm
- Overall length
- 1320 mm
- Weight, empty
- 4.50 kg
ActionHow it cycles, what trips it, and what feeds it.
- Action
- Bolt action
- Firing mechanism
- Striker fired
- Trigger
- Single stage
- Capacity
- 8
- Magazine
- Tube
MaterialsEach swatch is the material itself, not a colour chosen to stand for it.
- Frame
- Steel
- Barrel
- Steel
- Stock
- Wood
BallisticsFrom the service cartridge, not a handload.
- Muzzle velocity
- 485 m/s
- Maximum range
- 2400 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.
Split bridge receiver
Tubular magazine
Magazine cutoff
Volley 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 1,612 rifles | 4.50 kg | 3.50 kg | Heavier than about 90% |
| Overall lengthAmong 1,557 rifles | 1320 mm | 1080 mm | Longer than about 90% |
| Barrel lengthAmong 1,659 rifles | 850 mm | 584 mm | Longer than about 90% |
| Magazine capacityAmong 1,611 rifles | 8 | 5 | Holds more rounds than about 70% |
Answers
Questions about the Jarmann M1884
How much does the Jarmann M1884 weigh?
The Jarmann M1884 weighs 4.50 kg (9.92 lb) empty.
What caliber is the Jarmann M1884?
The Jarmann M1884 is chambered in 10.15×61mmR Jarmann.
How many rounds does the Jarmann M1884 hold?
The Jarmann M1884 holds 8 rounds, fed from a tube magazine.
How long is the Jarmann M1884?
The Jarmann M1884 is 1320 mm (52.0 in) long overall, with a 850 mm (33.5 in) barrel.
Who makes the Jarmann M1884?
The Jarmann M1884 is made by Kongsberg Vaapenfabrikk (Norway). It was designed by Jacob Smith Jarmann.
When was the Jarmann M1884 introduced?
The Jarmann M1884 was introduced in 1884 and discontinued in 1894.
How does the Jarmann M1884 operate?
The Jarmann M1884 uses a bolt 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
- Royal Norwegian Army
- 1884
- Swedish Army
- Sweden
Provenance
Confidence in this record
68%
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/jarmann-m1884' \ --header 'X-API-Key: your_key'{ "id": "jarmann-m1884", "name": "Jarmann M1884", "manufacturer": { "id": "kongsberg-vaapenfabrikk", "name": "Kongsberg Vaapenfabrikk", "countryCode": "NO", "foundedYear": 1814, "website": null, "logoUrl": null, "description": null, "status": null, "defunctYear": null, "stateOwned": null, "makesFirearms": null, "parentId": null, "predecessorId": null, "createdAt": "2026-04-05 22:24:37", "updatedAt": "2026-04-05 22:24:37", "version": "82608d925f094cc477278b4fee02a76abce31db3df38f56ecd3ebb324d0c6d62" }, "category": { "id": "rifle", "name": "Rifle", "description": "Long-barreled firearms designed for accurate shooting" }, "country_of_origin": "NO", "year_introduced": 1884, "barrel_length_mm": 850, "weight_empty_g": 4500, "action_type": "bolt_action"}