Barrett M107
- Category
- Sniper Rifle
- Barrel
- 737 mm
- Weight, empty
- 12.90 kg
- Introduced
- 2002
About
What it is, and why it matters
The Barrett M107 is the U.S. military-standardized designation of the Barrett M82A1, a recoil-operated, semi-automatic .50 BMG anti-materiel rifle. Adopted by the U.S. Army in 2002 as the 'Long Range Sniper Rifle, Caliber .50, M107', it fires the 12.7x99mm cartridge from a 10-round detachable box magazine through a 737 mm fluted barrel fitted with a large dual-chamber muzzle brake. The short-recoil action and recoil buffer system make the powerful cartridge controllable from a prone, bipod-supported position. The M107 is used to engage materiel targets such as parked aircraft, light vehicles, radar dishes and unexploded ordnance, as well as personnel at extreme range.
Ronnie Barrett designed the original .50 BMG semi-automatic rifle in his garage in the early 1980s with no formal engineering background, sketching the action on a napkin; two decades later the U.S. Army formally standardized his rifle as the M107, the first .50 caliber semi-automatic sniper rifle adopted by the United States.
The M107 designation covers the M82A1M variant standardized for U.S. service; the later M107A1 (2011) introduced a titanium-heavy lightweight design and suppressor-ready muzzle brake. Barrel length is the standard 29-inch (737 mm); some sources list a 20-inch (508 mm) barrel which corresponds to the shortened M107CQ carbine variant.
Specification
Everything measured
IdentityWhat it is, who built it and when.
- Manufacturer
- Barrett Firearms Manufacturing
- Category
- Sniper Rifle
- Country
- United States
- Status
- In service
- Produced
- 2002
- Variant of
- Military standardized
DimensionsAs issued, without a magazine or an optic.
- Barrel
- 737 mm
- Overall length
- 1448 mm
- Weight, empty
- 12.90 kg
ActionHow it cycles, what trips it, and what feeds it.
- Action
- Short recoil
- Firing mechanism
- Hammer fired
- Trigger
- Single stage
- Capacity
- 10
- Magazine
- Detachable box
MaterialsEach swatch is the material itself, not a colour chosen to stand for it.
- Frame
- Steel
- Barrel
- Steel
- Stock
- Aluminum
- Finish
- Anodized
BallisticsFrom the service cartridge, not a handload.
- Muzzle velocity
- 853 m/s
- Muzzle energy
- 15244 J
- Effective range
- 1800 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.
Dual chamber muzzle brake
Recoil buffer system
Integral bipod
Carry handle
Mil std 1913 rail
Fluted barrel
Detachable scope rail
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 | 12.90 kg | 12.43 kg | Heavier than about 60% |
| Overall lengthAmong 31 12.7x99mm NATO sniper rifles | 1448 mm | 1384 mm | Longer than about 70% |
| Barrel lengthAmong 31 12.7x99mm NATO sniper rifles | 737 mm | 737 mm | Near the median |
| Magazine capacityAmong 31 12.7x99mm NATO sniper rifles | 10 | 5 | Among the largest capacities |
Answers
Questions about the Barrett M107
How much does the Barrett M107 weigh?
The Barrett M107 weighs 12.90 kg (28.44 lb) empty.
What caliber is the Barrett M107?
The Barrett M107 is chambered in .50 BMG.
How many rounds does the Barrett M107 hold?
The Barrett M107 holds 10 rounds, fed from a detachable box magazine.
How long is the Barrett M107?
The Barrett M107 is 1448 mm (57.0 in) long overall, with a 737 mm (29.0 in) barrel.
Who makes the Barrett M107?
The Barrett M107 is made by Barrett Firearms Manufacturing (United States). It was designed by Ronnie Barrett.
When was the Barrett M107 introduced?
The Barrett M107 was introduced in 2002.
How does the Barrett M107 operate?
The Barrett M107 uses a short recoil 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.
In service
- United States Army
- 2002
- United States Marine Corps
- United States
- Armed Forces of Ukraine
- Ukraine
- Indian Armed Forces
- India
Provenance
Confidence in this record
78%
Stockists
Where to buy
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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/barrett-m107' \ --header 'X-API-Key: your_key'{ "id": "barrett-m107", "name": "Barrett M107", "manufacturer": { "id": "barrett", "name": "Barrett Firearms Manufacturing", "countryCode": "US", "foundedYear": 1982, "website": "https://barrett.net", "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 03:43:40", "version": "6dd30c0015037f53665cb9aaa33c196e737b2ac602c54d29b8a58f0d0eb3434d" }, "category": { "id": "sniper-rifle", "name": "Sniper Rifle", "description": "Precision rifles optimized for long-range accuracy" }, "country_of_origin": "US", "year_introduced": 2002, "barrel_length_mm": 737, "weight_empty_g": 12900, "action_type": "short_recoil"}