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M4e1 Assembled Upper Receiver Threaded 5.56mm Fde - M4e1 5.56 Nato Assembled Upper Rcvr Threaded W/M16 Cut Odg
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$145.99
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SKU: 430103907
Overview
Built for AR15 builders who want a receiver with a more refined profile, this upper combines an angular machined design with a threaded setup that accepts a standard AR15 barrel nut. It is forged from 7075-T6 aluminum, precision machined for compatibility with mil-spec AR15 parts, and comes with the port door and forward assist already installed. The enhanced body shape is intended to pair with Aero Precision’s M4E1 Lower Receiver for a coordinated look, while still using standard components. For hunters and shooters planning a custom build, it offers a clean foundation without moving into full billet pricing.
Why Hunters Choose the Aero Precision
Angular Machined
Design sets it apart from
Threaded Accept
Standard AR15 barrel nut
Forged From
7075-T6 aluminum
Precision Machined
All mil-spec AR15 parts
Port Door
Forward assist are pre-installed
Key Features
- Angular machined design distinguishes it from standard mil-spec upper receivers.
- Threaded to accept a standard AR15 barrel nut.
- Forged from 7075-T6 aluminum.
- Precision machined for compatibility with mil-spec AR15 parts.
- Port door and forward assist are pre-installed.
- Designed to pair with the M4E1 Lower Receiver for a billet-looking set.
Best Used For
- Builders seeking an upper receiver with a threaded setup for a standard AR15 barrel nut
- Users wanting compatibility with mil-spec AR15 parts and a pre-installed port door and forward assist
- Shooters pairing components with an M4E1 Lower Receiver for a coordinated receiver set
- Hunters and enthusiasts who prefer an angular, enhanced receiver profile over standard mil-spec styling
Specifications
| Barrel Nut Compatibility | Standard AR15 barrel nut |
|---|---|
| Body Profile | Enhanced body profile |
| Caliber | 5.56mm |
| Caliberchambering | 5.56 NATO |
| Compatibility | All mil-spec AR15 parts |
| Design | New angular machined design |
| Finishcolor | FDE |
| Included Components | Port door and forward assist pre-installed |
| M16 Cut | Yes |
| Material | 7075-T6 Aluminum |
| Receiver Type | Assembled upper receiver |
| Threaded | Yes |
Pros
- Angular machined design sets it apart from standard mil-spec upper receivers.
- Threaded to accept a standard AR15 barrel nut.
- Forged from 7075-T6 aluminum.
- Precision machined to work with all mil-spec AR15 parts.
- Port door and forward assist are pre-installed.
Considerations & Trade-offs
- Threaded to accept a standard AR15 barrel nut, so it is intended for builds that use that interface rather than a different upper setup.
- Includes the port door and forward assist pre-installed, which reduces flexibility if you prefer sourcing or configuring those parts separately.
- Designed to pair with the M4E1 Lower Receiver for a matched look, but it is still described as compatible with mil-spec AR15 parts rather than a fully proprietary system.
- The angular, enhanced body profile gives it a billet-like appearance, which may be a consideration if you want a more traditional mil-spec visual style.
Suggested Comparisons
- AR-15 upper receivers
- AR-15 receiver sets
- AR-15 barrels and barrel nuts
- AR-15 lower receivers
Suggested Accessories
- AR15 barrel nut
- M4E1 lower receiver
- Port door
- Forward assist
Frequently Asked Questions
What makes the M4E1 Threaded Upper Receiver different from a standard mil-spec upper receiver?
According to the product description, it uses a new angular machined design and the same enhanced body profile as the M4E1 Enhanced Upper Receiver, which helps it stand apart from standard mil-spec upper receivers.
Is this upper receiver compatible with standard AR15 parts?
Yes. The description says it is precision machined to work with all mil-spec AR15 parts.
Does this upper accept a standard AR15 barrel nut?
Yes. It is threaded to accept a standard AR15 barrel nut.
What parts come pre-installed on this upper receiver?
The port door and forward assist are included and pre-installed.
What material is the upper receiver made from?
The product description states that it is forged from 7075-T6 aluminum.