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M4e1 Assembled Upper Receiver Threaded 5.56mm Fde - M4e1 5.56 Assembled Upper Rcvr Threaded W/Ar15 Semi-Cut Blk
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$159.99
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SKU: 430109585
Overview
Built for AR15 builders who want a receiver with a more refined profile than a standard mil-spec option, this upper combines an angular machined design with a threaded interface for 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 design is intended to pair with the M4E1 Lower Receiver for a coordinated look, while still using standard components. For hunters and shooters planning a custom rifle setup, it offers a clean foundation without moving into a full billet price point.
Why Hunters Choose the Aero Precision
Angular Machined
Design sets it apart from
Threaded Accept
Standard AR15 barrel nut
Forged From
7075-T6 aluminum for a durable
Precision Machined
All mil-spec AR15 parts
Port Door
Forward assist come pre-installed
Key Features
- Angular machined M4E1 design stands 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.
- Designed to pair with the M4E1 Lower Receiver.
Best Used For
- Hunters building an AR-15 upper with standard barrel nut compatibility and mil-spec parts
- Users wanting an enhanced receiver profile with pre-installed port door and forward assist
- Builders pairing with an M4E1 Lower Receiver for a coordinated receiver set
- Those seeking a forged 7075-T6 aluminum upper with a more angular, distinct appearance
Specifications
| Barrel Nut Compatibility | Standard AR15 barrel nut |
|---|---|
| Blade Finish | FDE |
| Body Profile | Enhanced body profile |
| Caliber | 5.56mm |
| Compatibility | All mil-spec AR15 parts |
| Design | Angular machined design |
| Forward Assist | Pre-installed |
| Lower Receiver Compatibility | M4E1 Lower Receiver |
| Material | 7075-T6 Aluminum |
| Port Door | Pre-installed |
| 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 for a durable receiver foundation.
- Precision machined to work with all mil-spec AR15 parts.
- Port door and forward assist come pre-installed.
- Designed to pair with the M4E1 Lower Receiver for a matched look.
Considerations & Trade-offs
- Designed to accept a standard AR15 barrel nut, so it is not a direct fit for setups that rely on a different barrel-nut interface.
- The port door and forward assist are already pre-installed, which reduces build flexibility if you prefer to source or configure those parts separately.
- Its enhanced, angular profile is intended to pair with the M4E1 Lower Receiver for a matched look; that visual consistency may be less important if you are building a mixed receiver set.
- The product is described as precision machined to work with all mil-spec AR15 parts, so it is oriented toward mil-spec compatibility rather than nonstandard components.
Suggested Comparisons
- AR-15 upper receivers
- AR-15 upper receiver assemblies
- AR-15 lower receivers
- AR-15 barrel nuts
Suggested Accessories
- AR15 barrel nut
- AR15 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 has a new angular machined design and an enhanced body profile that sets it apart from standard mil-spec upper receivers.
Does this upper receiver accept a standard AR15 barrel nut?
Yes. The description states that it is threaded to accept a standard AR15 barrel nut.
Is the port door and forward assist included?
Yes. The product includes the port door and forward assist pre-installed.
What material is the upper receiver made from?
The description says it is forged from 7075-T6 aluminum.
Will this upper receiver work with mil-spec AR15 parts?
Yes. It is described as precision machined to work with all mil-spec AR15 parts.