Assembled M4-89 5.56x45 NATO 13.7" Bbl 13" M89 Rail W/Nox Brake

Name: Assembled M4-89 5.56x45 NATO 13.7" Bbl 13" M89 Rail W/Nox Brake
Brand: Sons Of Liberty Gun Works
Availability: OutOfStock

Sons Of Liberty Gun Works · Upper Receiver

No ratings yet

Best price

$950.00at Brownells

Out of stock checked Oct 1, 2026

Buy at Brownells

Where to buy

Store	Price	Availability	Buy	Add to build
Brownells	$950.00checked Oct 1, 2026	Out of stock	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.

Price history

Show

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

Show the prices as a table

Store	Latest	Lowest	Highest
Brownells	$950.00	$950.00	$950.00

Since Sep 28, 2026.

About this part

The Assembled M4-89 5.56x45 NATO 13.7" Bbl 13" M89 Rail W/Nox Brake is an AR-15 complete upper receiver from Sons Of Liberty Gun Works. One store lists it, Brownells at $950.00.

Fits and works with

Caliber: 5.56 / .223 · Shop matching ammo
Bolt: Standard AR-15 (5.56 / 300 BLK / .350 Legend) · Bolt carrier groups
Barrel length: 13.7" · Handguards
Handguard length: 13" · Barrels

Specifications

Manufacturer: Sons Of Liberty Gun Works
Type: Complete
Platform: AR-15
Caliber: 5.56 mm NATO

From the manufacturer

The SOLGW M4-89 Upper Half comes with SOLGW's Combat Barrel and M89 Rail, and is available in 12.5" and 13.7" 5.56, with A2, NOX or ASR muzzle devices. No BCG or C/H *13.7" barrels come pinned and welded flash hiders for OAL of 16"* Mfg: Sons Of Liberty Gun Works