Receiver PartsAero PrecisionSold by Brownells

Aero Precision

5.56x45mm Nato Assembled Upper Receiver For Ar-15 - 5.56x45 Nato Assembled Upper Receiver For Ar-15 Fde

Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.

Ar-15 Assembled

Upper receiver from Aero Precision

Includes Port

Door and forward assist already

Machined From

7075-T6 forged aluminum

Precision Machined

To mil-spec M16/M4 specifications

M4 Feedramps

.250 takedown pin holes

$115.99
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SKU: 100018687

Overview

This assembled upper receiver is built for AR-15 owners who want a ready-to-use foundation with the port door and forward assist already installed. Machined from 7075-T6 forged aluminum and cut to mil-spec M16/M4 specifications, it includes M4 feedramps, .250 takedown pin holes, and laser-engraved T-marks for straightforward setup. It works with standard AR15/M16 components and is intended to pair with Aero AR15 lower receivers for a solid fit. The anodized black finish keeps the look straightforward and functional for a serious rifle build.

Why Hunters Choose the Aero Precision

Includes Port

Door and forward assist already

Machined From

7075-T6 forged aluminum

Precision Machined

To mil-spec M16/M4 specifications

M4 Feedramps

For AR15 use

Laser Engraved

T-marks aid optic and accessory

Key Features

  • AR-15 assembled upper receiver from Aero Precision
  • Includes port door and forward assist already installed
  • Machined from 7075-T6 forged aluminum
  • Precision machined to mil-spec M16/M4 specifications
  • Features M4 feedramps and .250 takedown pin holes
  • Laser engraved T-marks for reference
  • Compatible with standard AR15/M16 components

Best Used For

  • AR-15 builders wanting an assembled upper with port door and forward assist already installed
  • Users matching standard AR15/M16 components for a straightforward upper receiver fit
  • Hunters or range shooters building a mil-spec M16/M4-spec platform
  • Aero lower receiver owners seeking a compatible upper receiver pairing
  • Builders who prefer laser engraved T-marks and M4 feedramps in a finished upper

Specifications

250 Takedown Pin Holestrue
Blade FinishAnodized Black
CompatibilityWorks with standard AR15/M16 components
Includes Forward Assisttrue
Includes Port Doortrue
Laser Engraved T Markstrue
M4 Feedrampstrue
MaterialMachined from 7075-T6 forged aluminum
PlatformAR15
Weight8.35 oz

Pros

  • Includes port door and forward assist already installed.
  • Machined from 7075-T6 forged aluminum.
  • Precision machined to mil-spec M16/M4 specifications.
  • Features M4 feedramps for AR15 use.
  • Laser engraved T-marks aid optic and accessory setup.
  • Compatible with standard AR15/M16 components.

Considerations & Trade-offs

  • Finish selection is listed as anodized black in the provided specs, while the product title references FDE; confirm the exact finish before ordering.
  • This is an assembled upper receiver only, so it still requires compatible AR15/M16 components and a lower receiver to complete the build.
  • The .250 takedown pin holes and standard AR15/M16 compatibility make fitment straightforward, but they also mean it is intended for standard-spec components rather than nonstandard setups.
  • Port door and forward assist are already installed, which simplifies assembly but leaves less room for custom part selection in those areas.

Suggested Comparisons

  • AR-15 lower receiver
  • AR-15 complete upper receiver
  • AR-15 stripped upper receiver
  • AR-15 parts and accessories

Suggested Accessories

  • AR-15 lower receiver
  • Charging handle
  • Bolt carrier group
  • Magazines

Frequently Asked Questions

What comes installed on this assembled upper receiver?

It includes the port door and forward assist already installed.

What platform is this upper receiver made for?

It is listed for the AR15 platform and is compatible with standard AR15/M16 components.

What material is the upper receiver made from?

The source lists it as machined from 7075-T6 forged aluminum.

Does this upper receiver include M4 feedramps?

Yes. M4 feedramps are listed as a feature.

What finish is specified for this upper receiver?

The listed finish is anodized black.