LUTH-AR BA-11-7M Government 5.56mm 11.50-inch Barrel

The Luth-ar BA-11-7M Government is an 11.50-inch 5.56mm barrel assembly machined from 4150 CMV steel and finished without chrome lining. It uses a button-broached bore and a 1:7 twist rate to stabilize a broad range of bullet weights. The assembly ships with an F-marked front sight base and a two-piece handguard to simplify installation and compatibility with common AR-15 upper receivers.

Key Specifications

• The manufacturer is LUTH-AR.
• The model is Government.
• The caliber is 5.56mm.
• The barrel measures 11.50 inches.
• The barrel material is 4150 CMV steel.
• The bore is button broached.
• The twist rate is 1:7 RH.
• The front sight base is F-marked.
• The handguard type is a two-piece handguard.
• The profile is a Government profile.

Designed for compact AR-15 builds where a short, serviceable barrel is desired, the BA-11-7M blends traditional government contouring with modern machining practices. The combination of a 1:7 twist, button-broached bore and durable 4150 CMV construction makes this assembly well suited for range use and general-purpose builds where consistent performance and straightforward installation are priorities.