B.A.D. Lightweight 5.25″ Threaded 9mm Barrel
The B.A.D. Lightweight 5.25″ Threaded 9mm Barrel is engineered for AR-9 platform builds where compact size, reliability, and performance matter. The B.A.D. Lightweight 5.25″ Threaded 9mm Barrel is designed around a lightweight profile that reduces front-end weight while maintaining the strength needed for consistent operation. Its 5.25-inch length makes it an excellent choice for pistol-caliber builds focused on maneuverability without sacrificing ballistic efficiency in the 9mm platform.
Constructed from durable 4140 steel, the B.A.D. Lightweight 5.25″ Threaded 9mm Barrel is built to handle repeated use while maintaining accuracy and longevity. The black nitride finish enhances surface hardness and corrosion resistance, providing a smooth, wear-resistant exterior that stands up to demanding shooting conditions. This finish also contributes to easier cleaning and long-term durability, making it a practical choice for both range and defensive applications.
The B.A.D. Lightweight 5.25″ Threaded 9mm Barrel features a 1:10 twist rate optimized for stabilizing common 9mm projectile weights, delivering consistent performance across a wide range of ammunition types. An improved feed ramp design enhances reliability, promoting smooth feeding in AR-9 systems and reducing the likelihood of malfunctions. This is especially important for pistol-caliber carbines and AR-9 builds where feed geometry plays a critical role in overall function.
Equipped with a 1/2×36 threaded muzzle, the B.A.D. Lightweight 5.25″ Threaded 9mm Barrel is compatible with a variety of muzzle devices commonly used on 9mm platforms. This threading pattern is standard for many AR-9 configurations, allowing builders to easily add compensators or other muzzle accessories tailored to their setup. The threaded design adds versatility while maintaining a secure and precise fit for attached components.
Purpose-built for AR rifle and AR-9 configurations, the B.A.D. Lightweight 5.25″ Threaded 9mm Barrel combines compact dimensions with high-quality construction and thoughtful design features. Whether you’re assembling a lightweight pistol-caliber carbine or refining an existing build, this barrel offers a balanced solution that emphasizes reliability, ease of use, and modern performance in a compact form factor.
Product Information
| Manufacturer | Battlearms Development |
|---|---|
| Platform | AR9 |
| Features | Threaded |
| Caliber | 9mm |
| Length | 5.25" |
| Twist Rate | 1:10 |
| Material | 4140 Steel |
| Finish | QPQ Nitride |
| Muzzle Thread | 1/2×36 |
| Made in USA | Yes |
| Weight | .56oz |

















