Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.
You'll be taken to Brownells to complete your purchase.
Hunter's Outpost earns a commission from affiliate links at no extra cost to you.
SKU: 100054331
Built for an AR-15 setup, this assembled upper receiver provides a ready-to-use foundation for a rifle build or replacement project. It arrives with the port door already installed and is configured without forward assist provisions, making it suited to builders who want that specific layout. The receiver is forged from 7075-T6 aluminum and precision machined to mil-spec M16/M4 specifications, with M4 feedramps, .250 takedown pin holes, and laser-engraved T-marks. Finished in anodized black, it is intended to pair with an AR15 lower receiver for a solid, dependable fit.
Port Door
Is already installed for a
Forged From
7075-T6 aluminum for a durable
Precision Machined
To mil-spec M16/M4 specifications
Includes M4
Feedramps for compatibility with supported
.250 Takedown
Pin holes and laser-engraved T-marks
| Blade Finish | Anodized black |
|---|---|
| Caliber | 5.56mm / 5.56 NATO |
| Compatibility | AR15 lower receivers |
| Feedramps | M4 feedramps |
| Forging | Custom forging designed to work specifically with mil-spec port |
| Forward Assist | No forward assist provisions |
| Material | 7075-T6 aluminum |
| Port Door | Installed |
| Specifications | Precision machined to mil-spec M16/M4 specifications |
| T Marks | Lazer engraved |
| Takedown Pin Holes | .250 |
The port door is already installed.
No. This model does not have forward assist provisions.
It is forged from 7075-T6 aluminum.
It is precision machined to mil-spec M16/M4 specifications and features M4 feedramps.
The product description says to match it with one of the AR15 lower receivers for a solid and dependable fit, but exact compatibility should still be verified for your specific build.