Centurion Arms C4 5.56 Billet AR-15 Upper Receiver

Name: Centurion Arms C4 5.56 Billet AR-15 Upper Receiver
Brand: Centurion Arms

Centurion Arms · Upper Receiver

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Best price

$190.00at AR15Discounts

checked Nov 10, 2026

Buy at AR15Discounts

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Where to buy

Store	Price	Availability	Buy	Add to build
AR15Discounts Best price	$190.00checked Nov 10, 2026	Check store	Buy at AR15Discounts
Dirty Bird	$190.00checked Nov 10, 2026	Check store	Buy at Dirty Bird

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

Price history

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Dashed line = out of stock. Tracking since Oct 28, 2026.

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Store	Latest	Lowest	Highest
AR15Discounts	$190.00	$190.00	$190.00
Dirty Bird	$190.00	$190.00	$190.00

Since Oct 28, 2026.

About this part

The Centurion Arms C4 5.56 Billet AR-15 Upper Receiver is a 5.56 / .223 upper receiver from Centurion Arms. It's sold by 2 stores, all at $190.00.

Fits and works with

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

Specifications

Manufacturer: Centurion Arms
Platform: AR-15
Caliber: 5.56 mm NATO

From the manufacturer

The Centurion Arms C4 Billet AR-15 Upper Receiver is designed to be used with the C4 Billet Lower. It is machined from a solid block of 7075-T6 aluminum and is Type III Class 2 hardcoat anodized black to military standards. It features a flat top picatinny rail and is compatible with standard upper parts. M4 feed ramps correspond with the feed ramps on your barrel extension to aid in reliability. The C4 stripped Billet AR-15 Upper Receiver is what you need for your next build. Features: CNC machined from 7075-T6 aluminum Hardcoat anodized black Compatible with Mil-Spec parts M4 feed ramps Picatinny top rail