Alexander Arms Ulfberht
- Category
- Sniper Rifle
- Barrel
- 699 mm
- Weight, empty
- 8.98 kg
- Introduced
- 2013
About
What it is, and why it matters
The Alexander Arms Ulfberht is a semi-automatic precision rifle chambered in .338 Lapua Magnum, representing one of the most ambitious engineering undertakings in the modern firearms industry. At 19.8 pounds with a 27.5-inch fluted barrel, the Ulfberht delivers the devastating long-range performance of the .338 Lapua Magnum cartridge from a semi-automatic platform -- a feat previously achieved only by bolt-action rifles. The rifle employs a long-stroke piston operating system specifically designed to manage the extreme pressures and bolt thrust of the .338 Lapua cartridge. The action is built on a proprietary large-frame receiver machined from 7075-T6 aluminum, with a Magpul PRS adjustable stock and Geissele SSA two-stage trigger. The barrel extends past the modular aluminum handguard, where it is fluted to reduce weight and improve heat dissipation during sustained fire.
Named after the legendary medieval Viking swords inscribed '+VLFBERH+T' that were centuries ahead of their time in metallurgy, the Ulfberht rifle similarly pushes the boundaries of firearms engineering as the first commercially available semi-automatic .338 Lapua Magnum.
The Ulfberht is named after the legendary Viking swords bearing the inscription '+VLFBERH+T', which were crafted from crucible steel far superior to contemporary weapons -- a fitting name for a rifle that pushes the boundaries of what a semi-automatic platform can achieve. At nearly 20 pounds, the rifle is heavy but necessarily so to manage the punishing recoil of the .338 Lapua Magnum in a semi-automatic action. The trigger pull weight is approximately 4 lbs 9 oz. The folding stock reduces the overall length from 50 inches to 41.25 inches for transport. The rifle accepts proprietary 10-round detachable box magazines.
Specification
Everything measured
IdentityWhat it is, who built it and when.
- Manufacturer
- Alexander Arms
- Category
- Sniper Rifle
- Country
- United States
- Status
- In production
- Produced
- 2013
DimensionsAs issued, without a magazine or an optic.
- Barrel
- 699 mm
- Overall length
- 1270 mm
- Weight, empty
- 8.98 kg
- Weight, loaded
- 9.70 kg
ActionHow it cycles, what trips it, and what feeds it.
- Action
- Gas operated long stroke
- Firing mechanism
- Rotating bolt
- Trigger
- Two stage
- Trigger pull
- 20.0 N
- Capacity
- 10
- Magazine
- Detachable box
MaterialsEach swatch is the material itself, not a colour chosen to stand for it.
- Frame
- Aluminum alloy
- Barrel
- 4140 steel
- Stock
- Polymer
- Finish
- Hard anodized matte black
BallisticsFrom the service cartridge, not a handload.
- Muzzle velocity
- 900 m/s
- Muzzle energy
- 6560 J
- Effective range
- 1500 m
- Maximum range
- 6700 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.
Free floating barrel
Fluted barrel
Folding stock
Picatinny rail
Adjustable stock
Geissele ssa trigger
Modular handguard
Suppressor ready
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 39 .338 Lapua Magnum sniper rifles | 8.98 kg | 6.53 kg | Among the heaviest tenth |
| Overall lengthAmong 37 .338 Lapua Magnum sniper rifles | 1270 mm | 1230 mm | Longer than about 80% |
| Barrel lengthAmong 39 .338 Lapua Magnum sniper rifles | 699 mm | 686 mm | Longer than about 80% |
| Magazine capacityAmong 39 .338 Lapua Magnum sniper rifles | 10 | 5 | Holds more rounds than about 90% |
Answers
Questions about the Alexander Arms Ulfberht
How much does the Alexander Arms Ulfberht weigh?
The Alexander Arms Ulfberht weighs 8.98 kg (19.80 lb) empty and 9.70 kg (21.38 lb) loaded.
What caliber is the Alexander Arms Ulfberht?
The Alexander Arms Ulfberht is chambered in .338 Lapua Magnum.
How many rounds does the Alexander Arms Ulfberht hold?
The Alexander Arms Ulfberht holds 10 rounds, fed from a detachable box magazine.
How long is the Alexander Arms Ulfberht?
The Alexander Arms Ulfberht is 1270 mm (50.0 in) long overall, with a 699 mm (27.5 in) barrel.
Who makes the Alexander Arms Ulfberht?
The Alexander Arms Ulfberht is made by Alexander Arms (United States). It was designed by Bill Alexander.
When was the Alexander Arms Ulfberht introduced?
The Alexander Arms Ulfberht was introduced in 2013.
How does the Alexander Arms Ulfberht operate?
The Alexander Arms Ulfberht uses a gas operated long stroke action, and its firing mechanism is rotating 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.
Provenance
Confidence in this record
84%
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/alexander-arms-ulfberht' \ --header 'X-API-Key: your_key'{ "id": "alexander-arms-ulfberht", "name": "Alexander Arms Ulfberht", "manufacturer": { "id": "alexander-arms", "name": "Alexander Arms", "countryCode": "US", "foundedYear": 2001, "website": "https://www.alexanderarms.com", "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": "448f9289b6878e20e1cf58fdf2e7a371c9f2e11982c20f4c6ab29625efdb6e23" }, "category": { "id": "sniper-rifle", "name": "Sniper Rifle", "description": "Precision rifles optimized for long-range accuracy" }, "country_of_origin": "US", "year_introduced": 2013, "barrel_length_mm": 699, "weight_empty_g": 8981, "action_type": "gas_operated_long_stroke"}