FN America .223 Rem/5.56 16" Mid-Length Barrel, Chrome Lined Black Phosphate - 36422
$279.99 at GunMag Warehouse · 5 stores
In stock
FN America .223 Rem/5.56 20" Rifle Barrel, Chrome Lined Black Phosphate - 36424
FN · Barrels
No ratings yetBest price
$299.98at Palmetto State Armory
Out of stock not checked recently
In stock now instead
- FN America .223 Rem/5.56 16" Mid-Length Barrel, Chrome Lined Bl… $279.99at GunMag Warehouse
- FN America .223 Rem/5.56 18" Rifle Barrel, Chrome Lined Black P… $279.99at GunMag Warehouse
- AR-15 18" Barrel Urban Super Sniper Fluted Threaded 1-8 Tw $299.99at OpticsPlanet
Where to buy
| Store | Price | Availability | Buy | Add to build |
|---|---|---|---|---|
| Palmetto State Armory Best price | $299.98not checked recently | Out of stock | Buy at Palmetto State Armory | |
| Brownells | $349.00checked Oct 22, 2026 | Out of stock | Buy at Brownells | |
| MidwayUSA | $349.99checked Oct 22, 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.
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This part is out of stock at every store we track. These similar barrels are in stock, with today's prices.
FN America .223 Rem/5.56 18" Rifle Barrel, Chrome Lined Black Phosphate - 36423
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Price history
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 |
| MidwayUSA | $349.99 | $349.00 | $349.99 |
Since Sep 27, 2026.
About this part
The FN America .223 Rem/5.56 20" Rifle Barrel, Chrome Lined Black Phosphate - 36424 is a 2E+1" 5.56 / .223 barrel from FN. It's sold by 3 stores, from $299.98 to $349.99.
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
- 2E+1" · Handguards
Specifications
- Manufacturer
- FN
- Platform
- AR-15
- Barrel length
- 20"
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. There 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.
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