
Availability: In Stock
Current Stock: Out of stock
A White Label Armory WLA-BRL-4004 AR15 barrel in 5.56 NATO gives you a reliable, affordable way to refresh your platform or build a dedicated upper. At 13.70 inches, this government profile barrel lands in the compact-to-midlength zone popular with shooters who want maneuverability without sacrificing too much velocity. Whether you're assembling an SBR, a truck gun, or a recce-style rifle, swapping barrels lets you tune your AR to the mission at hand—and White Label Armory keeps the entry cost low.
Government profile barrels are the standard on military and law-enforcement platforms for a reason: they're robust, proven, and fit standard barrel extensions and free-float tubes without fussing. The 5.56 NATO chambering handles everything from .223 Remington to full-power mil-spec loads, making this barrel a versatile foundation for range work, hunting, or tactical training.
Barrel replacement is one of the easiest AR maintenance tasks—no special tools beyond a barrel wrench and armorer's block. White Label Armory barrels are manufactured to spec, so you get a straightforward install and the repeatability you need if you're chasing accuracy or just swapping uppers. For builders and shooters on a budget, this is practical, no-frills engineering.
| Manufacturer | White Label Armory |
| Model | WLA-BRL-4004 |
| Caliber | 5.56 NATO |
| Barrel Length | 13.70" |
| Profile | Government |
Yes. The government profile and standard AR15 barrel extension are compatible with any AR platform upper. You'll need a barrel wrench and appropriate clamping block to install it safely.
Yes. AR barrels chambered in 5.56 NATO safely fire .223 Remington ammunition. The reverse is not recommended—.223 chambers are tighter and not designed for the higher pressures of 5.56 mil-spec loads.
Federal law defines a rifle as having a barrel of at least 16". This 13.70" barrel requires registration as a short-barreled rifle (SBR) under the National Firearms Act in most jurisdictions, or use in a non-NFA configuration (such as an un-registered pistol build, where legal). Always verify your local and state laws before assembly.

SKU: 194200438





Availability: In Stock
Current Stock: Out of stock
A White Label Armory WLA-BRL-4004 AR15 barrel in 5.56 NATO gives you a reliable, affordable way to refresh your platform or build a dedicated upper. At 13.70 inches, this government profile barrel lands in the compact-to-midlength zone popular with shooters who want maneuverability without sacrificing too much velocity. Whether you're assembling an SBR, a truck gun, or a recce-style rifle, swapping barrels lets you tune your AR to the mission at hand—and White Label Armory keeps the entry cost low.
Government profile barrels are the standard on military and law-enforcement platforms for a reason: they're robust, proven, and fit standard barrel extensions and free-float tubes without fussing. The 5.56 NATO chambering handles everything from .223 Remington to full-power mil-spec loads, making this barrel a versatile foundation for range work, hunting, or tactical training.
Barrel replacement is one of the easiest AR maintenance tasks—no special tools beyond a barrel wrench and armorer's block. White Label Armory barrels are manufactured to spec, so you get a straightforward install and the repeatability you need if you're chasing accuracy or just swapping uppers. For builders and shooters on a budget, this is practical, no-frills engineering.
| Manufacturer | White Label Armory |
| Model | WLA-BRL-4004 |
| Caliber | 5.56 NATO |
| Barrel Length | 13.70" |
| Profile | Government |
Yes. The government profile and standard AR15 barrel extension are compatible with any AR platform upper. You'll need a barrel wrench and appropriate clamping block to install it safely.
Yes. AR barrels chambered in 5.56 NATO safely fire .223 Remington ammunition. The reverse is not recommended—.223 chambers are tighter and not designed for the higher pressures of 5.56 mil-spec loads.
Federal law defines a rifle as having a barrel of at least 16". This 13.70" barrel requires registration as a short-barreled rifle (SBR) under the National Firearms Act in most jurisdictions, or use in a non-NFA configuration (such as an un-registered pistol build, where legal). Always verify your local and state laws before assembly.
SKU: 194200438
