AR-15 5.56 Upper Receiver Assembly 16" W/ FS & Handguard

Best price

$653.99at Brownells

checked Sep 30, 2026

Buy at Brownells

Where to buy

Store	Price	Availability	Buy	Add to build
Brownells	$653.99checked Sep 30, 2026	Check store	Buy at Brownells

Prices and availability change often, so confirm on the store's site before you buy. We may earn a commission from these links.

About this part

The AR-15 5.56 Upper Receiver Assembly 16" W/ FS & Handguard is a 16" 5.56 / .223 upper receiver from Colt. One store lists it, Brownells at $653.99.

Fits and works with

Caliber: 5.56 / .223 · Shop matching ammo
Bolt: Standard AR-15 (5.56 / 300 BLK / .350 Legend) · Bolt carrier groups
Barrel length: 16" · Handguards

Specifications

Manufacturer: Colt
Platform: AR-15
Caliber: 5.56 mm NATO
Barrel length: 16"
Length: 16

From the manufacturer

Add the Colt legend of reliability to you rifle or build with these complete upper receivers from Colt. Built with standard AR-15 upper receivers, with a 16.1" barrel chambered in 5.56 NATO, with a 1-7 twist. Parts are finished in black. All upper receivers include a charging handle, bolt carrier group, and back up sights. All NFA rules apply.