M40A5
- Category
- Sniper Rifle
- Barrel
- 610 mm
- Weight, empty
- 7.48 kg
- Introduced
- 2009
About
What it is, and why it matters
The M40A5 is a bolt-action sniper rifle chambered in 7.62x51mm NATO, produced by Remington Arms since 2009. This American-manufactured firearm reflects the engineering traditions and quality standards of its country of origin, designed to meet the demands of both civilian and professional users in a competitive global marketplace. Featuring a 5-round magazine capacity, this sniper rifle offers compact firepower. The striker-fired action provides a consistent trigger pull for every shot, simplifying training and reducing the manual of arms - a design philosophy that has become the dominant paradigm in modern defensive handguns. The 24.0-inch barrel maximizes accuracy potential and ballistic performance, making this an excellent choice for target shooting, competition, or field use. At 7480g (263.8 oz), this is a substantial firearm whose weight contributes to reduced felt recoil and enhanced stability during precision shooting. The steel frame provides a solid, premium feel with the durability to withstand decades of regular use and thousands of rounds. This firearm represents its manufacturer's commitment to delivering a well-engineered, reliable product that serves the needs of discerning shooters seeking quality, accuracy, and dependable performance from a proven platform.
The M40 rifle series has been the USMC's standard sniper rifle since the Vietnam War, when the Marine Corps ordered 700 Remington Model 40x target rifles and assigned them the M40 designation. Every M40 variant since has been hand-built at Quantico by USMC armorers, making it one of the few military weapons that is custom-assembled for each individual rifle rather than factory mass-produced. The M40A5 carries forward this tradition of craftsmanship, with each rifle built to sub-MOA accuracy standards.
Unlike mass-produced military rifles, each M40 is individually built to exacting standards by USMC armorers at Quantico. The M40 series has been in continuous USMC service since 1966, making it one of the longest-serving sniper rifle platforms in any military. The M40A5 weighs approximately 8.59 kg (18.94 lbs) when fully equipped with scope, bipod, sling, and loaded 5-round magazine, and approximately 9.18 kg (20.24 lbs) with sound suppressor installed. The overall length with suppressor is 1,356mm (53.37 inches). The Philippine Marine Corps received 85 M40A5 rifles delivered in 2017, which saw service during the Siege of Marawi. The M40 series is being gradually replaced by the Mk 13 Mod 7 chambered in .300 Winchester Magnum for greater range capability.
Specification
Everything measured
IdentityWhat it is, who built it and when.
- Manufacturer
- Remington Arms
- Category
- Sniper Rifle
- Country
- United States
- Status
- In service
- Produced
- 2009
DimensionsAs issued, without a magazine or an optic.
- Barrel
- 610 mm
- Overall length
- 1124 mm
- Weight, empty
- 7.48 kg
- Weight, loaded
- 8.59 kg
ActionHow it cycles, what trips it, and what feeds it.
- Action
- Bolt action
- Firing mechanism
- Striker fired
- Trigger
- Single stage
- Trigger pull
- 27.0 N
- Capacity
- 5
- Magazine
- Detachable box
MaterialsEach swatch is the material itself, not a colour chosen to stand for it.
- Frame
- Steel
- Barrel
- Stainless steel
- Stock
- Fiberglass composite
- Finish
- Matte black
BallisticsFrom the service cartridge, not a handload.
- Muzzle velocity
- 777 m/s
- Muzzle energy
- 2867 J
- Effective range
- 915 m
- Maximum range
- 3725 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
Threaded barrel
Suppressor ready
Aluminum bedding block
Adjustable cheek piece
Detachable bipod
Picatinny rail
Heavy barrel
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 80 7.62x51mm NATO sniper rifles | 7.48 kg | 5.04 kg | Among the heaviest tenth |
| Overall lengthAmong 80 7.62x51mm NATO sniper rifles | 1124 mm | 1116 mm | Longer than about 60% |
| Barrel lengthAmong 80 7.62x51mm NATO sniper rifles | 610 mm | 559 mm | Longer than about 70% |
| Magazine capacityAmong 80 7.62x51mm NATO sniper rifles | 5 | 15 | Holds fewer rounds than about 80% |
Answers
Questions about the M40A5
How much does the M40A5 weigh?
The M40A5 weighs 7.48 kg (16.49 lb) empty and 8.59 kg (18.94 lb) loaded.
What caliber is the M40A5?
The M40A5 is chambered in 7.62x51mm NATO.
How many rounds does the M40A5 hold?
The M40A5 holds 5 rounds, fed from a detachable box magazine.
How long is the M40A5?
The M40A5 is 1124 mm (44.3 in) long overall, with a 610 mm (24.0 in) barrel.
Who makes the M40A5?
The M40A5 is made by Remington Arms (United States).
When was the M40A5 introduced?
The M40A5 was introduced in 2009.
How does the M40A5 operate?
The M40A5 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
- United States Marine Corps
- 2009
- Philippine Marine Corps
- 2017
- Afghan National Army
- Afghanistan
- Royal Malaysian Navy (PASKAL)
- Malaysia
Provenance
Confidence in this record
85%
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/m40a5' \ --header 'X-API-Key: your_key'{ "id": "m40a5", "name": "M40A5", "manufacturer": { "id": "remington", "name": "Remington Arms", "countryCode": "US", "foundedYear": 1816, "website": "https://www.remarms.com", "logoUrl": null, "description": null, "status": "active", "defunctYear": null, "stateOwned": null, "makesFirearms": null, "parentId": null, "predecessorId": null, "createdAt": "2026-02-11 23:44:38", "updatedAt": "2026-02-18 03:40:45", "version": "f839df62af811e3e261014e3302be8a7e112b5d78fb2f9f7bfad68d74817c9c8" }, "category": { "id": "sniper-rifle", "name": "Sniper Rifle", "description": "Precision rifles optimized for long-range accuracy" }, "country_of_origin": "US", "year_introduced": 2009, "barrel_length_mm": 610, "weight_empty_g": 7480, "action_type": "bolt_action"}