Benelli M4 EXT
- Category
- Shotgun
- Barrel
- 470 mm
- Weight, empty
- 3.81 kg
- Introduced
- 2026
About
What it is, and why it matters
The Benelli M4 EXT is a 2026 factory tactical evolution of Benelli's legendary gas-operated M4 combat shotgun. It ships with a flush-fit extended magazine tube for 7+1 capacity, a five-position collapsible stock with integrated pistol grip, ghost-ring sights, a Picatinny optics rail, and an oversized bolt release, packaging the upgrades that serious users had long been bolting on themselves. It retains the M4's self-regulating A.R.G.O. (Auto-Regulating Gas-Operated) twin short-stroke piston system.
The base M4 is the famous M1014, adopted by the U.S. Marine Corps in 1999 as the first semi-automatic shotgun in U.S. military service; for about 25 years U.S. civilians were stuck with a 5+1 tube while military and law-enforcement versions ran full-length tubes, and the EXT is Benelli's official answer.
The EXT's defining feature is its full-length extended magazine tube, raising civilian capacity from the long-standard hobbled 5+1 to 7+1 (up to 9 total when ghost-loaded). Offered in H2O Titanium Cerakote, FDE, and MultiCam Black. Retailer weight figures vary (7.8 to 8.4 lb).
Specification
Everything measured
IdentityWhat it is, who built it and when.
- Manufacturer
- Benelli Armi SpA
- Category
- Shotgun
- Country
- Italy
- Status
- In production
- Produced
- 2026
- Variant of
- Extended tube tactical
DimensionsAs issued, without a magazine or an optic.
- Barrel
- 470 mm
- Overall length
- 1016 mm
- Weight, empty
- 3.81 kg
ActionHow it cycles, what trips it, and what feeds it.
- Action
- Gas operated short stroke piston
- Firing mechanism
- Rotating bolt
- Trigger
- Single stage
- Capacity
- 7
- Magazine
- Tube
MaterialsEach swatch is the material itself, not a colour chosen to stand for it.
- Frame
- Aluminum
- Barrel
- Steel
- Stock
- Polymer
- Finish
- Cerakote
BallisticsFrom the service cartridge, not a handload.
- Muzzle velocity
- 408 m/s
- Effective range
- 45 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.
- Argo twin piston gas system
Extended magazine tube
Ghost ring sights
Picatinny rail
5 position collapsible stock
Integrated pistol grip
Oversized bolt release
Removable choke tubes- 922r compliant
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 622 12 Gauge shotguns | 3.81 kg | 3.29 kg | Heavier than about 90% |
| Overall lengthAmong 570 12 Gauge shotguns | 1016 mm | 1150 mm | Shorter than about 80% |
| Barrel lengthAmong 650 12 Gauge shotguns | 470 mm | 711 mm | Shorter than about 90% |
| Magazine capacityAmong 647 12 Gauge shotguns | 7 | 3 | Holds more rounds than about 90% |
Answers
Questions about the Benelli M4 EXT
How much does the Benelli M4 EXT weigh?
The Benelli M4 EXT weighs 3.81 kg (8.40 lb) empty.
What caliber is the Benelli M4 EXT?
The Benelli M4 EXT is chambered in 12 Gauge.
How many rounds does the Benelli M4 EXT hold?
The Benelli M4 EXT holds 7 rounds, fed from a tube magazine.
How long is the Benelli M4 EXT?
The Benelli M4 EXT is 1016 mm (40.0 in) long overall, with a 470 mm (18.5 in) barrel.
Who makes the Benelli M4 EXT?
The Benelli M4 EXT is made by Benelli Armi SpA (Italy).
When was the Benelli M4 EXT introduced?
The Benelli M4 EXT was introduced in 2026.
How does the Benelli M4 EXT operate?
The Benelli M4 EXT uses a gas operated short stroke piston action, and its firing mechanism is rotating bolt.
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
76%
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/benelli-m4-ext' \ --header 'X-API-Key: your_key'{ "id": "benelli-m4-ext", "name": "Benelli M4 EXT", "manufacturer": { "id": "benelli", "name": "Benelli Armi SpA", "countryCode": "IT", "foundedYear": 1967, "website": "https://www.benelliusa.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 03:43:40", "version": "5f08a63ece0051736f8d9999540da44cdb8fd0ff8028739abfd0a34bd79f0fdc" }, "category": { "id": "shotgun", "name": "Shotgun", "description": "Smoothbore firearms designed to fire shot or slugs" }, "country_of_origin": "IT", "year_introduced": 2026, "barrel_length_mm": 470, "weight_empty_g": 3810, "action_type": "gas_operated_short_stroke_piston"}