White Label Armory WLA-BRL-4002 AR15 Barrel 5.56 NATO 10.50" Government Profile

The White Label Armory WLA-BRL-4002 is a 10.5-inch AR15 barrel chambered in 5.56 NATO with a government profile—a no-nonsense upgrade for builders and shooters who want a proven, compact barrel for their AR platform. At 10.5 inches, this barrel strikes a practical balance: short enough for tight handling and portability in a patrol rifle, truck gun, or home defense build, but long enough to generate useful velocity from the 5.56 NATO cartridge. Government profile barrels are the military standard profile—durable, robust, and designed to handle both rapid fire and sustained use without unnecessary weight.

White Label Armory barrels are manufactured to tight tolerances and finished ready to install. Whether you're building a new upper from the ground up or swapping barrels on an existing AR, this 10.5-inch government profile keeps you in familiar territory: it will work with standard AR15 barrel extension and gas tube combinations, and matches the profile of millions of military and civilian AR rifles in the field. This is the kind of barrel that doesn't demand coddling—it's built to work hard.

A 10.5-inch 5.56 NATO is at home in close-quarters scenarios and tight spaces where a full-length rifle becomes a liability. It's equally at home on the range, where its compact length makes for a more nimble shooter. Pair this with a quality bolt carrier group, gas tube, and handguard, and you've got the core of a serious AR that does real work without pretension.

Key Features

• 5.56 NATO chamber for wide ammunition availability and compatibility with standard AR magazines
• 10.5-inch barrel length—compact, maneuverable, and practical for defensive and patrol rifle builds
• Government profile—proven design used in military and civilian service rifles, optimized for durability and reliability
• Ready for upper assembly installation with standard AR15 components

Specifications

Frequently Asked Questions

Will this barrel work with my existing AR15 upper receiver?

Yes. The WLA-BRL-4002 is a standard AR15 barrel with a government profile that is compatible with any AR15 upper receiver and standard barrel extensions. You'll need a matching bolt carrier group, gas tube, and handguard to complete the upper assembly.

What's the practical use case for a 10.5-inch AR barrel?

A 10.5-inch barrel excels in compact, close-quarters applications—home defense, patrol rifles, truck guns, and CQB scenarios where a shorter profile improves handling and maneuverability. It still generates respectable velocity with 5.56 NATO ammunition while being easier to shoot in tight spaces.

Is government profile heavier than other profiles?

Government profile barrels are a standard military profile—robust and durable, designed to handle sustained use. They're a proven design with no unnecessary material, balancing strength and practicality for real-world use.

What do I need to install this barrel?

To complete an upper assembly, you'll need a barrel extension (typically included or purchased separately), gas tube, bolt carrier group, charging handle, and handguard. A barrel vise block and armorer's wrench are helpful for installation but not included.