Aero Precision M4E1
- Category
- Carbine
- Barrel
- 406 mm
- Weight, empty
- 2.92 kg
- Introduced
- 2015
About
What it is, and why it matters
The Aero Precision M4E1 complete rifle is an AR-15-pattern semi-automatic carbine built on Aero's Enhanced (M4E1) upper receiver, which integrates the handguard mounting platform into a one-piece design for a rigid, free-floated barrel. It uses a 16-inch nitride 5.56 barrel with a 1:8 twist, mid-length direct-impingement gas, an ATLAS R-ONE 15-inch M-LOK handguard, VG6 muzzle device, ambidextrous Breach charging handle and Magpul furniture.
Distinct from the separately listed M4E1 Complete configuration; Aero offers the M4E1 in multiple finishes and furniture options.
Specification
Everything measured
IdentityWhat it is, who built it and when.
- Manufacturer
- Aero Precision
- Category
- Carbine
- Country
- United States
- Status
- In production
- Produced
- 2015
DimensionsAs issued, without a magazine or an optic.
- Barrel
- 406 mm
- Overall length
- 851 mm
- Weight, empty
- 2.92 kg
ActionHow it cycles, what trips it, and what feeds it.
- Action
- Gas operated
- Firing mechanism
- Hammer fired
- Trigger
- Single stage
- Capacity
- 30
- Magazine
- Detachable box
MaterialsEach swatch is the material itself, not a colour chosen to stand for it.
- Frame
- Aluminum
- Barrel
- Steel
- Stock
- Polymer
- Finish
- Black anodized
BallisticsFrom the service cartridge, not a handload.
- Muzzle velocity
- 945 m/s
- Effective range
- 500 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 float handguard
M lok handguard
Muzzle brake
Adjustable stock
Ambidextrous charging handle
Accessory 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 141 5.56x45mm NATO carbines | 2.92 kg | 2.95 kg | Lighter than about 60% |
| Overall lengthAmong 144 5.56x45mm NATO carbines | 851 mm | 838 mm | Longer than about 60% |
| Barrel lengthAmong 150 5.56x45mm NATO carbines | 406 mm | 406 mm | Longer than about 70% |
| Magazine capacityAmong 150 5.56x45mm NATO carbines | 30 | 30 | Near the median |
Answers
Questions about the Aero Precision M4E1
How much does the Aero Precision M4E1 weigh?
The Aero Precision M4E1 weighs 2.92 kg (6.44 lb) empty.
What caliber is the Aero Precision M4E1?
The Aero Precision M4E1 is chambered in 5.56x45mm NATO.
How many rounds does the Aero Precision M4E1 hold?
The Aero Precision M4E1 holds 30 rounds, fed from a detachable box magazine.
How long is the Aero Precision M4E1?
The Aero Precision M4E1 is 851 mm (33.5 in) long overall, with a 406 mm (16.0 in) barrel.
Who makes the Aero Precision M4E1?
The Aero Precision M4E1 is made by Aero Precision (United States).
When was the Aero Precision M4E1 introduced?
The Aero Precision M4E1 was introduced in 2015.
How does the Aero Precision M4E1 operate?
The Aero Precision M4E1 uses a gas operated 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
80%
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/aero-precision-m4e1' \ --header 'X-API-Key: your_key'{ "id": "aero-precision-m4e1", "name": "Aero Precision M4E1", "manufacturer": { "id": "aero-precision", "name": "Aero Precision", "countryCode": "US", "foundedYear": 1994, "website": "https://www.aeroprecisionusa.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 03:43:38", "version": "a73983bdb6e8fdf2660fe8212be79b61cfa9189d0c69a22bce1f4fa5fa977a56" }, "category": { "id": "carbine", "name": "Carbine", "description": "Shortened rifles for close-quarters use" }, "country_of_origin": "US", "year_introduced": 2015, "barrel_length_mm": 406, "weight_empty_g": 2920, "action_type": "gas_operated"}