FX Royale 400
- Category
- Rifle
- Barrel
- 500 mm
- Weight, empty
- 3.20 kg
- Introduced
- 2014
About
What it is, and why it matters
The FX Royale 400 is a regulated pre-charged pneumatic (PCP) air rifle produced by FX Airguns of Sweden. It features a 400cc carbon-fibre air cylinder, a reversible side-lever cocking action, a 12-shot removable rotary magazine (16 shots in .177), and the FX Smooth Twist shrouded and moderated match barrel for a quiet report. A fully adjustable two-stage match trigger and a three-step power adjuster on the left side of the breech let shooters tune the rifle, which in .22 calibre produces around 30 ft-lbs of muzzle energy. It was a flagship sporter-stocked hunting and target rifle before being superseded by the FX Crown.
FX Airguns was founded by Swedish airgun designer Fredrik Axelsson, and the Royale represented the firm's high-end sporter PCP before its later modular platforms such as the Crown and Impact took over the top of the range.
Offered in .177, .22, and .25 calibres and in synthetic, walnut, and laminate stock options. The Royale 500 variant carried a larger 500cc cylinder for higher shot count. Synthetic models weigh about 3.2 kg and walnut about 3.4 kg.
Specification
Everything measured
IdentityWhat it is, who built it and when.
- Manufacturer
- FX Airguns AB
- Category
- Rifle
- Country
- Sweden
- Status
- Discontinued
- Produced
- 2014 to 2018
DimensionsAs issued, without a magazine or an optic.
- Barrel
- 500 mm
- Overall length
- 1030 mm
- Weight, empty
- 3.20 kg
ActionHow it cycles, what trips it, and what feeds it.
- Action
- Single action
- Firing mechanism
- Hammer fired
- Trigger
- Two stage
- Trigger pull
- 4.0 N
- Capacity
- 12
- Magazine
- Rotary
MaterialsEach swatch is the material itself, not a colour chosen to stand for it.
- Frame
- Aluminum
- Barrel
- Steel
- Stock
- Walnut
- Finish
- Oil
BallisticsFrom the service cartridge, not a handload.
- Muzzle velocity
- 280 m/s
- Muzzle energy
- 40 J
- Effective range
- 60 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 barrel
Side lever cocking
Carbon fiber air cylinder
Adjustable power- Three step power adjuster
Shrouded barrel- Moderated barrel
Picatinny rail
Removable rotary magazine
Match trigger
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 | 3.20 kg | 3.20 kg | Near the median |
| Overall lengthAmong 60 .22 Air (5.5mm) rifles | 1030 mm | 987 mm | Longer than about 60% |
| Barrel lengthAmong 58 .22 Air (5.5mm) rifles | 500 mm | 487 mm | Longer than about 60% |
| Magazine capacityAmong 60 .22 Air (5.5mm) rifles | 12 | 10 | Holds more rounds than about 80% |
Answers
Questions about the FX Royale 400
How much does the FX Royale 400 weigh?
The FX Royale 400 weighs 3.20 kg (7.05 lb) empty.
What caliber is the FX Royale 400?
The FX Royale 400 is chambered in .22 Air (5.5mm).
How many rounds does the FX Royale 400 hold?
The FX Royale 400 holds 12 rounds, fed from a rotary magazine.
How long is the FX Royale 400?
The FX Royale 400 is 1030 mm (40.6 in) long overall, with a 500 mm (19.7 in) barrel.
Who makes the FX Royale 400?
The FX Royale 400 is made by FX Airguns AB (Sweden). It was designed by Fredrik Axelsson.
When was the FX Royale 400 introduced?
The FX Royale 400 was introduced in 2014 and discontinued in 2018.
How does the FX Royale 400 operate?
The FX Royale 400 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
72%
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-royale-400' \ --header 'X-API-Key: your_key'{ "id": "fx-royale-400", "name": "FX Royale 400", "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": 2014, "barrel_length_mm": 500, "weight_empty_g": 3200, "action_type": "single_action"}