FN America .223 Rem/5.56 16" Mid-Length Barrel, Chrome Lined Black Phosphate - 36422

Name: FN America .223 Rem/5.56 16" Mid-Length Barrel, Chrome Lined Black Phosphate - 36422
Brand: FN
Availability: InStock

FN · Barrels

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Best price

$279.99at GunMag Warehouse

In stock checked Oct 21, 2026

Buy at GunMag Warehouse

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Where to buy

Store	Price	Availability	Buy
GunMag Warehouse Best price	$279.99checked Oct 21, 2026	In stock	Buy at GunMag Warehouse
Palmetto State Armory	$298.99not checked recently	Out of stock	Buy at Palmetto State Armory
Brownells	$349.00checked Oct 21, 2026	Out of stock	Buy at Brownells
OpticsPlanet	$349.00Salechecked Oct 21, 2026	Out of stock	Buy at OpticsPlanet
MidwayUSA	$349.99checked Oct 21, 2026	Out of stock	Buy at MidwayUSA

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: $279.99 at GunMag Warehouse. Dashed line = out of stock. Tracking since Sep 27, 2026.

Show the prices as a table

Store	Latest	Lowest	Highest
Brownells	$349.00	$349.00	$349.00
GunMag Warehouse	$279.99	$279.99	$279.99
MidwayUSA	$349.99	$349.00	$349.99
OpticsPlanet	$349.00	$349.00	$349.00

Since Sep 27, 2026.

About this part

The FN America .223 Rem/5.56 16" Mid-Length Barrel, Chrome Lined Black Phosphate - 36422 is a 16" 5.56 / .223 barrel from FN with a mid-length gas system. It's sold by 5 stores (1 in stock), from $279.99 to $349.99. The lowest in-stock price in the last 30 days was $279.99 at GunMag Warehouse.

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: Mid-length · Handguards
Barrel length: 16" · Handguards

Specifications

Manufacturer: FN
Platform: AR-15
Barrel length: 16"

From the manufacturer

FN AR-15 Hammer-Forged Barrels have a chrome-lined chamber and bore to help resist corrosion and provide heat erosion resistance. Their barrel is forged from Chrome Moly Vanadium steel and built for the .750" diameter gas block with 1/2x28" threaded muzzle. It has an M4-style feed ramp and barrel extension for consistent and reliable feeding. This barrel is chambered in 5.56 NATO with a 1:7" twist with a manganese phosphate finish.