Receiver PartsAtiSold by Brownells

Ati

Mil-Sport Ar15 Stripped Upper Receiver - Mil Sport Ar-15 Stripped Upper Receiver 16'''' Bbl Black

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

Brownell's Exclusive

ATI Mil-Sport stripped upper receiver

Usa-made Upper

ATI forged construction

Configured 16-inch

A 16-inch barrel and 1:8

Finished Black

For a clean, uniform appearance

Shooters Building

Custom AR-15 upper assembly

$289.99
View on Brownells

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: 430106629

Overview

Built for an AR-15 build, this stripped upper receiver is intended for shooters who want a foundation component ready for their preferred lower and supporting parts. The configuration includes a 16-inch barrel with a 1:8 twist and 4150C construction, making it suited to a general-purpose rifle setup. As a stripped upper, it leaves room for the builder to choose the remaining components and tailor the rifle to specific use needs. The black finish gives it a straightforward, utilitarian look that fits a working hunting or field rifle build.

Why Hunters Choose the Ati

Brownell’s Exclusive

ATI Mil-Sport stripped upper receiver

Usa-made Stripped

Upper receiver from ATI

Includes Ati

Forged upper receiver

Configured 16-inch

A 16-inch barrel and 1:8

Listed 4150c

4150C barrel specification

Key Features

  • Brownell's exclusive ATI Mil-Sport stripped upper receiver for AR-15 builds.
  • USA-made upper receiver with ATI forged construction.
  • Configured with a 16-inch barrel and 1:8 twist.
  • Finished in black for a clean, uniform appearance.
  • Designed for shooters building a custom AR-15 upper assembly.

Best Used For

  • AR-15 builders seeking a Brownell's exclusive stripped upper for a custom rifle project.
  • Shooters wanting a 16-inch, 1:8 twist upper receiver as a build starting point.
  • Hunters assembling a black-finished AR-15 upper for a tailored field setup.
  • Enthusiasts who prefer a stripped upper receiver for component-by-component rifle builds.

Pros

  • Brownell’s exclusive ATI Mil-Sport stripped upper receiver for AR-15 builds
  • USA-made stripped upper receiver from ATI
  • Includes ATI forged upper receiver
  • Configured with a 16-inch barrel and 1:8 twist
  • Listed with 4150C barrel specification

Considerations & Trade-offs

  • This is a stripped upper receiver, so it is intended for builders who already have the remaining AR-15 components and want to complete the setup themselves.
  • The product description references a 16" barrel with 1:8 twist and 4150C, but the listing is centered on the upper receiver; confirm exactly what is included before ordering.
  • Because it is a Brownell's exclusive ATI component, compatibility and final configuration should be checked against the rest of your build plan rather than assumed.
  • The description provides limited technical detail beyond the listed features, so buyers may need additional product information to evaluate fit for their intended use.

Suggested Comparisons

  • AR-15 complete upper receivers
  • AR-15 stripped upper receivers
  • AR-15 barrels
  • AR-15 upper receiver parts

Suggested Accessories

  • AR-15 lower receiver
  • AR-15 handguard
  • AR-15 charging handle
  • AR-15 bolt carrier group

Frequently Asked Questions

What is included with the Mil-Sport AR-15 Stripped Upper Receiver?

It is listed as a stripped upper receiver. The provided description identifies it as an ATI forged upper receiver, but it does not list additional included components.

Is this upper receiver intended for an AR-15 build?

Yes. The product is described as an AR-15 stripped upper receiver.

What barrel information is provided in the product data?

The short and long descriptions mention a 16-inch barrel with a 1:8 twist and 4150C, but no further barrel details are provided.

Where is this upper receiver made?

The provided description states that it is USA-made.

Does the product data specify the finish or color?

Yes. The product title identifies it as black.