AR15 Pistol Upper Assembly / 4" 9mm / 1:10 / 160-499

AR15 Pistol Upper Assembly / 4" 9mm / 1:10 / 160-499

Was: $329.00
On Sale $219.00
(1 review) Write a Review
SKU:
160-499
Availability:
All AR15 - Overstock uppers, kits, and rifles are hand-built in our shop by hard-working Americans, many of whom are proud Veterans. The current build-to-ship time of this product can be up to 1-2 days.

This AR15 upper receiver assembly comes ready to attach to any Mil-Spec lower receiver. It is built around a 4 inch, 4150 chrome moly barrel and has a black nitride finish. The upper receiver is a forged M4 flat top upper, allowing you to easily attach rifle scopes and red dot sights to the picatinny rail. Outfitted with a 4″ M-LOK Rail that contains generously sized M-LOK cuts, this upper assembly allows for maximum air circulation around the barrel for faster cooling

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  • 5
    Great

    Posted by Will Johnson on Jun 24, 2025

    Love it for the new 9mm ar build

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