The Luth-ar BA-11-7M Government 11.50 inch barrel assembly is a government-profile barrel designed for compact AR-15 upper builds. It features a 1:7 twist rate to stabilize a broad range of 5.56mm bullet weights and uses button broaching in rifling manufacture. The assembly includes an F marked front sight base and a two-piece handguard for straightforward installation and familiar ergonomics.
Key Specifications
- The caliber is 5.56mm.
- The barrel measures 11.50 inches for a compact, government-profile configuration.
- The twist rate is 1:7 RH to stabilize a wide weight range of projectiles.
- The barrel material is 4150 CMV (Not Chrome Lined).
- The rifling was produced by Button Broached tooling.
- The profile is classified as Government.
- The assembly includes an F marked front sight base.
- The handguard is a 2-piece handguard for installation flexibility.
- The barrel type is listed as Carbine Length.
- This component is intended for AR-15 upper assemblies.
Well-suited for compact, duty-style or recreational AR builds, this BA-11-7M barrel assembly pairs classic government profile lines with modern barrel steel and manufacturing. Its 1:7 twist and durable 4150 CMV construction make it a practical choice for builders who want reliable performance and straightforward installation in a compact platform.









