SIG Cross Magnum
- Category
- Rifle
- Barrel
- 610 mm
- Weight, empty
- 3.99 kg
- Introduced
- 2023
About
What it is, and why it matters
The SIG Cross Magnum is a lightweight bolt-action rifle chambered in .300 Winchester Magnum, introduced in 2023 as the magnum-action evolution of the SIG Cross precision hunting rifle. It uses a coyote-anodized aluminum chassis frame, a user-changeable 24-inch 5R medium-contour barrel, a free-floating handguard with full-length M-Lok and ARCA rails, and a folding adjustable precision stock that lets the rifle collapse for transport. An integrated radial compensator reduces felt recoil of the magnum cartridge, and the rifle feeds from a 6-round AICS-pattern steel magazine through a two-stage match trigger.
The original SIG Cross debuted in 2020 as an ultralight crossover between a hunting rifle and a precision chassis rifle. The Cross Magnum extended that concept to belted magnum cartridges, giving long-range hunters a folding, modular .300 Win Mag rifle that still stays under nine pounds.
Built around an enlarged magnum action receiver to accommodate belted magnum cartridges, extending the original Cross platform beyond its short-action chamberings. SIG cites a roughly 45 percent reduction in felt recoil from the integrated radial compensator. The folding stock brings the overall length down to just over 35 inches (about 895 mm) for storage and transport.
Specification
Everything measured
IdentityWhat it is, who built it and when.
- Manufacturer
- SIG Sauer
- Category
- Rifle
- Country
- United States
- Status
- In production
- Produced
- 2023
- Variant of
- Magnum action
DimensionsAs issued, without a magazine or an optic.
- Barrel
- 610 mm
- Overall length
- 1148 mm
- Height
- 184 mm
- Weight, empty
- 3.99 kg
- Weight, loaded
- 4.04 kg
ActionHow it cycles, what trips it, and what feeds it.
- Action
- Bolt action
- Firing mechanism
- Striker fired
- Trigger
- Two stage
- Capacity
- 6
- Magazine
- Detachable box
MaterialsEach swatch is the material itself, not a colour chosen to stand for it.
- Frame
- Aluminum alloy
- Barrel
- Stainless steel
- Stock
- Aluminum chassis polymer furniture
- Finish
- Coyote anodized
BallisticsFrom the service cartridge, not a handload.
- Muzzle velocity
- 900 m/s
- Muzzle energy
- 4722 J
- Effective range
- 1000 m
- Maximum range
- 4000 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.
User changeable barrel
Free floating handguard
Folding adjustable stock
M lok handguard
Arca rail
Two stage match trigger
Integrated radial compensator
5r rifling
Aics pattern magazine
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 1,612 rifles | 3.99 kg | 3.50 kg | Heavier than about 70% |
| Overall lengthAmong 1,557 rifles | 1148 mm | 1080 mm | Longer than about 70% |
| Barrel lengthAmong 1,659 rifles | 610 mm | 584 mm | Longer than about 60% |
| Magazine capacityAmong 1,611 rifles | 6 | 5 | Holds more rounds than about 60% |
Answers
Questions about the SIG Cross Magnum
How much does the SIG Cross Magnum weigh?
The SIG Cross Magnum weighs 3.99 kg (8.80 lb) empty and 4.04 kg (8.90 lb) loaded.
What caliber is the SIG Cross Magnum?
The SIG Cross Magnum is chambered in .300 Winchester Magnum.
How many rounds does the SIG Cross Magnum hold?
The SIG Cross Magnum holds 6 rounds, fed from a detachable box magazine.
How long is the SIG Cross Magnum?
The SIG Cross Magnum is 1148 mm (45.2 in) long overall, with a 610 mm (24.0 in) barrel.
Who makes the SIG Cross Magnum?
The SIG Cross Magnum is made by SIG Sauer (Germany). It was designed by SIG Sauer.
When was the SIG Cross Magnum introduced?
The SIG Cross Magnum was introduced in 2023.
How does the SIG Cross Magnum operate?
The SIG Cross Magnum 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.
Provenance
Confidence in this record
82%
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/sig-cross-magnum' \ --header 'X-API-Key: your_key'{ "id": "sig-cross-magnum", "name": "SIG Cross Magnum", "manufacturer": { "id": "sig-sauer", "name": "SIG Sauer", "countryCode": "DE", "foundedYear": 1985, "website": "https://www.sigsauer.com", "logoUrl": null, "description": null, "status": null, "defunctYear": null, "stateOwned": null, "makesFirearms": null, "parentId": null, "predecessorId": null, "createdAt": "2026-02-11 23:44:40", "updatedAt": "2026-02-18 03:40:48", "version": "944f4088befdcee3b0aa7caf122998351ef3d78abc525a2bdec9df81e65a6b30" }, "category": { "id": "rifle", "name": "Rifle", "description": "Long-barreled firearms designed for accurate shooting" }, "country_of_origin": "US", "year_introduced": 2023, "barrel_length_mm": 610, "weight_empty_g": 3990, "action_type": "bolt_action"}