AR-15 Assembled Upper Receiver W/O CH Or BCG 300 BLK

Best price

$284.99at Brownells

checked Sep 30, 2026

Buy at Brownells

Where to buy

Store	Price	Availability	Buy	Add to build
Brownells	$284.99checked Sep 30, 2026	Check store	Buy at Brownells

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About this part

The AR-15 Assembled Upper Receiver W/O CH Or BCG 300 BLK is a 300 Blackout upper receiver from Brownells. One store lists it, Brownells at $284.99.

Fits and works with

Caliber: 300 Blackout · Shop matching ammo
Bolt: Standard AR-15 (5.56 / 300 BLK / .350 Legend) · Bolt carrier groups

Specifications

Manufacturer: Brownells
Color: Black
Platform: AR-15

From the manufacturer

This Brownells’ exclusive AR-15 Upper Receiver is Made in the USA. Chambered in 300 Blackout and featuring a 16” barrel with a 1:8 twist. The standard A3 13-slot aluminum flat top receiver comes with a 10” handguard utilizing the KeyMod rail system. A low profile gas block, forward assist, ejection port cover and phosphate finish help to complete this package. Left out of this upper are the bolt carrier group as well as the charging handle so you can customize the upper any way you want! The A3 upper receiver will attach to almost any standard AR-15 lower receiver.