Stripped Brn-4 5.56x45 13.7" Medium Chrome Lined Barrel, Phosphate
$279.99 at Brownells
In stock Sale
Best price
$249.99at Brownells
Out of stock checked Oct 22, 2026
In stock now instead
- Stripped Brn-4 5.56x45 13.7" Medium Chrome Lined Barrel, Phosph… $279.99at Brownells
- Stripped Brn-4 5.56x45 14.5" Medium Chrome Lined Barrel Phospha… $279.99at Brownells
- Recon Barrel 5.56 18 Fluted Rifle Gas Stainless 1-8 $249.92at MidwayUSA
Where to buy
| Store | Price | Availability | Buy | Add to build |
|---|---|---|---|---|
| Brownells | $249.99checked Oct 22, 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.
Similar barrels in stock
This part is out of stock at every store we track. These similar barrels are in stock, with today's prices.
Stripped Brn-4 5.56x45 14.5" Medium Chrome Lined Barrel Phosphate
$279.99 at Brownells
In stock Sale
Recon Barrel 5.56 18 Fluted Rifle Gas Stainless 1-8
$249.92 at MidwayUSA · 7 stores
In stock Sale
Recon Barrel 5.56 16in Fluted Intermediate Gas
$249.92 at MidwayUSA · 7 stores
In stock Sale
APF Armory AR-15 5.56 NATO Threaded Barrel 16in 1-7 Twist 1/2x28 Black
$249.00 at OpticsPlanet
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Ballistic Advantage Premium Series Rifle Barrel AR-15 .223 Wylde 17.7 in Hanson Barrel .750 in Mid Length 1/2x28 Bead Blasted Gray
$247.99 at GunMag Warehouse · 3 stores
In stock
Price history
Dashed line = out of stock. Tracking since Sep 27, 2026.
Show the prices as a table
| Store | Latest | Lowest | Highest |
|---|---|---|---|
| Brownells | $249.99 | $249.99 | $249.99 |
Since Sep 27, 2026.
About this part
The Barrel 5.56mm NATO 18 1-8 Rifle Length Black is a 5.56 / .223 barrel from Brownells with a rifle gas system. One store lists it, Brownells at $249.99.
Fits and works with
- Caliber
- 5.56 / .223 · Shop matching ammo
- Bolt
- Standard AR-15 (5.56 / 300 BLK / .350 Legend) · Bolt carrier groups
- Gas system
- Rifle · Handguards
Specifications
- Manufacturer
- Brownells
- Color
- Black
- Platform
- AR-15
- Caliber
- 5.56 mm NATO
From the manufacturer
A MK12-Profile Barrel for Your Precision AR-15
The MK12 platform received fame for its use with US Special Operations groups as a semi-automatic precision rifle, and one of the essential elements of the platform is now offered as the Brownells 5.56 NATO MK12 Profile AR-15 barrel.
The Brownells 5.56 NATO MK12 Profile AR-15 barrel are completely machined and finished by craftsmen in the USA and are made using stainless-steel bar stock that's 416-R certified steel and completely stress relieved. The barrels measure 18 inches long.
- Features 1:8 rate of twist
- Suppressor ready with 1/2x28 TPI threads
- Features 11-degree target crown
- Each barrel undergoes magnetic-particle inspection for quality
The Brownells 5.56 NATO MK12 Profile AR-15 barrel also features a complete nitride treatment, as well as precision machining for perfect suppressor compatibility.
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