Accuracy International AW50
- Category
- Sniper Rifle
- Barrel
- 686 mm
- Weight, empty
- 15.00 kg
- Introduced
- 2000
About
What it is, and why it matters
The Accuracy International AW50 is a bolt-action anti-materiel rifle chambered in .50 BMG (12.7x99mm NATO), designed for long-range hard target interdiction, explosive ordnance disposal at standoff distance, and anti-materiel applications. Built on a scaled-up version of AI's proven Arctic Warfare platform, the AW50 retains the modular aluminum chassis design, folding stock, and exceptional manufacturing quality that made the AW series famous. The rifle features a massive 686mm free-floating barrel with a highly effective muzzle brake that reduces felt recoil to manageable levels despite firing the powerful .50 BMG cartridge. The bolt action employs a multi-lug rotating bolt designed for the higher pressures and forces associated with the 12.7mm round. At 15 kilograms empty, the AW50 is one of the lighter rifles in its class, significantly undercutting competitors like the Barrett M82A1 in weight while offering bolt-action precision. The British Armed Forces adopted the AW50 as the L121A1 for use by sniper teams requiring anti-materiel capability.
The AW50 brought Accuracy International's renowned bolt-action precision to the anti-materiel role, offering a lighter and more accurate alternative to semi-automatic .50 BMG rifles. British forces in Afghanistan and Iraq used the L121A1 for explosive ordnance disposal at standoff distance, detonating IEDs from safe range with precision .50 BMG fire, a task that required the bolt-action rifle's superior first-round accuracy over semi-automatic alternatives.
The AW50 was designed to complement rather than replace the L115A3 (AWM) in British military service, providing anti-materiel capability against vehicles, communications equipment, and other high-value targets at extended range. The effective muzzle brake reduces felt recoil by approximately 50%, making sustained accuracy possible despite the .50 BMG's substantial energy. The folding stock reduces transport length to approximately 1130mm. The rifle can engage targets at ranges exceeding 1,500 meters with appropriate optics and ammunition. Standard British military issue pairs the AW50 with a Schmidt & Bender 3-12x50 PM II scope.
Specification
Everything measured
IdentityWhat it is, who built it and when.
- Manufacturer
- Accuracy International
- Category
- Sniper Rifle
- Country
- United Kingdom
- Status
- In production
- Produced
- 2000
DimensionsAs issued, without a magazine or an optic.
- Barrel
- 686 mm
- Overall length
- 1420 mm
- Weight, empty
- 15.00 kg
- Weight, loaded
- 15.80 kg
ActionHow it cycles, what trips it, and what feeds it.
- Action
- Bolt action
- Firing mechanism
- Striker fired
- Trigger
- Two stage
- Trigger pull
- 20.0 N
- Capacity
- 5
- 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
- Matte black
BallisticsFrom the service cartridge, not a handload.
- Muzzle velocity
- 853 m/s
- Muzzle energy
- 18000 J
- Effective range
- 1500 m
- Maximum range
- 6800 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
Adjustable cheek piece
Folding stock
Integral bipod mount
Suppressor ready
Muzzle brake
Accessory rail
Modular stock system
Recoil pad
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 31 12.7x99mm NATO sniper rifles | 15.00 kg | 12.43 kg | Heavier than about 90% |
| Overall lengthAmong 31 12.7x99mm NATO sniper rifles | 1420 mm | 1384 mm | Longer than about 60% |
| Barrel lengthAmong 31 12.7x99mm NATO sniper rifles | 686 mm | 737 mm | Shorter than about 90% |
| Magazine capacityAmong 31 12.7x99mm NATO sniper rifles | 5 | 5 | Near the median |
Answers
Questions about the Accuracy International AW50
How much does the Accuracy International AW50 weigh?
The Accuracy International AW50 weighs 15.00 kg (33.07 lb) empty and 15.80 kg (34.83 lb) loaded.
What caliber is the Accuracy International AW50?
The Accuracy International AW50 is chambered in .50 BMG.
How many rounds does the Accuracy International AW50 hold?
The Accuracy International AW50 holds 5 rounds, fed from a detachable box magazine.
How long is the Accuracy International AW50?
The Accuracy International AW50 is 1420 mm (55.9 in) long overall, with a 686 mm (27.0 in) barrel.
Who makes the Accuracy International AW50?
The Accuracy International AW50 is made by Accuracy International (United Kingdom).
When was the Accuracy International AW50 introduced?
The Accuracy International AW50 was introduced in 2000.
How does the Accuracy International AW50 operate?
The Accuracy International AW50 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
- British Armed Forces
- 2000
- Australian Defence Force
- Australia
- Royal Malaysian Armed Forces
- Malaysia
- Portuguese Armed Forces
- Portugal
- Singapore Armed Forces
- Singapore
- Irish Defence Forces
- Ireland
Provenance
Confidence in this record
78%
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/accuracy-international-aw50' \ --header 'X-API-Key: your_key'{ "id": "accuracy-international-aw50", "name": "Accuracy International AW50", "manufacturer": { "id": "accuracy-international", "name": "Accuracy International", "countryCode": "GB", "foundedYear": 1978, "website": "https://www.accuracyinternational.com", "logoUrl": null, "description": null, "status": null, "defunctYear": null, "stateOwned": null, "makesFirearms": null, "parentId": null, "predecessorId": null, "createdAt": "2026-02-11 23:44:38", "updatedAt": "2026-02-18 03:43:34", "version": "866df02489fa366bae9eb49362c9e929d73f7a1c5456d99b5727d9c049063c47" }, "category": { "id": "sniper-rifle", "name": "Sniper Rifle", "description": "Precision rifles optimized for long-range accuracy" }, "country_of_origin": "GB", "year_introduced": 2000, "barrel_length_mm": 686, "weight_empty_g": 15000, "action_type": "bolt_action"}