FX Crown
- Category
- Rifle
- Barrel
- 500 mm
- Weight, empty
- 2.86 kg
- Introduced
- 2018
About
What it is, and why it matters
The FX Crown is a regulated pre-charged pneumatic (PCP) air rifle introduced in 2018 by FX Airguns of Sweden. It pairs a traditional sporter stock with the company's modular internals, including the Smooth Twist X (STX) interchangeable barrel-liner system, a removable carbon-fibre air cylinder, a reversible side-lever cocking action, and a removable rotary magazine. Its externally adjustable AMP regulator and hammer spring let shooters tune power and shot count, making the Crown a highly accurate platform favoured for airgun hunting and long-range target shooting.
FX Airguns was founded by Swedish airgun designer Fredrik Axelsson, and the Crown brought the firm's modular, tool-tunable PCP technology into a conventional rifle-stocked package aimed at hunters and field-target competitors.
Available in .177, .22, .25, and .30 calibres via interchangeable Smooth Twist X barrel liners. Revised as the Crown MkII (2019) with a 28% larger plenum and 6.5mm valve. A more compact Crown VP version was also offered.
Specification
Everything measured
IdentityWhat it is, who built it and when.
- Manufacturer
- FX Airguns AB
- Category
- Rifle
- Country
- Sweden
- Status
- In production
- Produced
- 2018
DimensionsAs issued, without a magazine or an optic.
- Barrel
- 500 mm
- Overall length
- 970 mm
- Weight, empty
- 2.86 kg
ActionHow it cycles, what trips it, and what feeds it.
- Action
- Single action
- Firing mechanism
- Hammer fired
- Trigger
- Two stage
- Trigger pull
- 8.0 N
- Capacity
- 18
- Magazine
- Rotary
MaterialsEach swatch is the material itself, not a colour chosen to stand for it.
- Frame
- Aluminum
- Barrel
- Steel
- Stock
- Walnut
- Finish
- Anodized
BallisticsFrom the service cartridge, not a handload.
- Muzzle velocity
- 280 m/s
- Muzzle energy
- 46 J
- Effective range
- 75 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.
- Regulated pcp
Smooth twist x barrel
Interchangeable barrel liner
Interchangeable caliber
Side lever cocking
Carbon fiber air cylinder
Externally adjustable regulator
Adjustable power
Shrouded barrel
Picatinny rail
Removable rotary magazine
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 60 .22 Air (5.5mm) rifles | 2.86 kg | 3.20 kg | Lighter than about 70% |
| Overall lengthAmong 60 .22 Air (5.5mm) rifles | 970 mm | 987 mm | Near the median |
| Barrel lengthAmong 58 .22 Air (5.5mm) rifles | 500 mm | 487 mm | Longer than about 60% |
| Magazine capacityAmong 60 .22 Air (5.5mm) rifles | 18 | 10 | Among the largest capacities |
Its place in the rankings
Answers
Questions about the FX Crown
How much does the FX Crown weigh?
The FX Crown weighs 2.86 kg (6.31 lb) empty.
What caliber is the FX Crown?
The FX Crown is chambered in .22 Air (5.5mm).
How many rounds does the FX Crown hold?
The FX Crown holds 18 rounds, fed from a rotary magazine.
How long is the FX Crown?
The FX Crown is 970 mm (38.2 in) long overall, with a 500 mm (19.7 in) barrel.
Who makes the FX Crown?
The FX Crown is made by FX Airguns AB (Sweden). It was designed by Fredrik Axelsson.
When was the FX Crown introduced?
The FX Crown was introduced in 2018.
How does the FX Crown operate?
The FX Crown uses a single 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.
Provenance
Confidence in this record
74%
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/fx-crown' \ --header 'X-API-Key: your_key'{ "id": "fx-crown", "name": "FX Crown", "manufacturer": { "id": "fx-airguns", "name": "FX Airguns AB", "countryCode": "SE", "foundedYear": 1999, "website": "https://www.fxairguns.com", "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": "a43a6783036da27bccd0a1f230bac7f581ed33c53e547cfe0a689b136f4ce4a5" }, "category": { "id": "rifle", "name": "Rifle", "description": "Long-barreled firearms designed for accurate shooting" }, "country_of_origin": "SE", "year_introduced": 2018, "barrel_length_mm": 500, "weight_empty_g": 2860, "action_type": "single_action"}