White Label Armory WLA-BRL-4005 AR15 Barrel 5.56 NATO 14.50" Government Profile

A White Label Armory AR15 barrel chambered in 5.56 NATO with a 14.50" government profile profile is a practical choice for builders looking to configure a short-to-mid-length AR platform for hunting, sport shooting, or tactical applications. This caliber and profile combination balances velocity, handling, and compatibility across a wide range of AR-15 builds, making it a straightforward upgrade or replacement barrel for existing rifles or new builds.

The government profile is the military-standard contour—heavier and stiffer than pencil barrels, offering better heat dissipation and durability without excessive weight. The 5.56 NATO chambering is the standard across modern AR-15s and delivers reliable performance with both commercial .223 Remington and military 5.56 ammunition. The 14.50" length positions this barrel in the short-to-mid-range category, making it suitable for close-quarters work, home defense setups, or compact hunting builds while still producing sufficient velocity for the cartridge.

White Label Armory manufactures this barrel for AR-15 enthusiasts and builders who want a dependable, no-frills component at a fair value. Installation requires a barrel wrench, upper receiver vise block, and basic gunsmithing tools or a qualified armorer. Proper headspace verification and chamber cleaning are essential steps after installation. Whether you're assembling your first AR or upgrading an existing rifle, a quality government-profile barrel in 5.56 NATO is a core building block you can rely on.

Key Features

• 5.56 NATO chamber for broad ammunition compatibility
• Government profile contour for durability and heat management
• 14.50" length suited for short-to-mid-length AR builds
• Standard AR-15 threading and installation interface

Specifications

Frequently Asked Questions

Will this barrel fit my AR-15?

Yes, this is a standard AR-15 barrel with military-spec threading and dimensions. It will fit any AR-15 upper receiver, though installation requires a barrel wrench, receiver block, and proper headspace tools or professional gunsmithing.

Can I use .223 Remington ammo in a 5.56 NATO barrel?

Yes. A 5.56 NATO chamber safely fires both 5.56 NATO and .223 Remington ammunition. However, firing 5.56 in a .223 chamber is not recommended.

Is this barrel suitable for hunting?

Yes. A 14.50" barrel in 5.56 NATO is capable for hunting applications within the cartridge's effective range, particularly for varmint and medium game, depending on your local regulations and hunting distance.

What tools do I need to install this barrel?

You'll need a barrel wrench, upper receiver vise block, armorer's hammer, and headspace gauges or access to a qualified gunsmith. After installation, the barrel and chamber must be cleaned and headspace verified.