5.56 NATO 16" M4 Contour Carbine 1-7 Twist Thread Black

Name: 5.56 NATO 16" M4 Contour Carbine 1-7 Twist Thread Black
Brand: One Horse
Availability: InStock

One Horse · Barrels

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Best price

$88.99at Ammunition Depot

In stock checked Oct 1, 2026

Buy at Ammunition Depot

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Where to buy

Store	Price	Availability	Buy
Ammunition Depot Best price	$88.99checked Oct 1, 2026	In stock	Buy at Ammunition Depot
OpticsPlanet	$121.99checked Oct 1, 2026	In stock	Buy at OpticsPlanet
Battlehawk Armory	$83.08Salechecked Oct 1, 2026	Check store	Buy at Battlehawk Armory
Brownells	$107.99checked 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

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Lowest in-stock price in the last 30 days: $88.99 at Ammunition Depot. Dashed line = out of stock. Tracking since Sep 28, 2026.

Show the prices as a table

Store	Latest	Lowest	Highest
Ammunition Depot	$88.99	$88.99	$88.99
Battlehawk Armory	$83.08	$83.08	$83.08
Brownells	$107.99	$107.99	$107.99
OpticsPlanet	$121.99	$121.99	$121.99

Since Sep 28, 2026.

About this part

The 5.56 NATO 16" M4 Contour Carbine 1-7 Twist Thread Black is a 16" 5.56 / .223 barrel from One Horse with a carbine gas system. It's sold by 4 stores (2 in stock), from $83.08 to $121.99. The lowest in-stock price in the last 30 days was $88.99 at Ammunition Depot.

Fits and works with

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

Specifications

Manufacturer: One Horse
Color: Black
Platform: AR-15
Caliber: 5.56 mm NATO
Gas system: Carbine
Barrel length: 16"
Twist rate: 1:7

From the manufacturer

ONE HORSE LLC 5.56 NATO M4 CONTOUR CARBINE BARREL FOR AR-15 16a ^2 M4 Contour Barrel - 5.56 NATO, 1:7 Twist, Nitride Finish Build a reliable and accurate AR15 with this 16a ^2 M4 Contour Barrel. Chambered in 5.56 NATO with a 1:7 twist rate, this barrel stabilizes a wide range of bullet weights for exceptional versatility in tactical or range applications. Its carbine-length gas system ensures smooth cycling, while the premium nitride finish enhances durability, corrosion resistance, and reduces maintenance. Precision-crafted to Mil-Spec standards, it's the perfect choice for your next build. 16a ^2 length with M4 contour for balanced weig Mfg: One Horse