CMC Triggers BBL556003 AR Barrel 5.56 NATO 16″ Black

The CMC Triggers BBL556003 is a 16-inch AR-platform barrel chambered for 5.56 NATO. It features a 1:7 rate of twist and a black finish, intended for installation in standard AR upper assemblies. The barrel is identified by the BBL556003 part code and is presented as a replacement or upgrade option for AR rifles. Specifications are drawn directly from the provided product data.

Key Specifications

• The manufacturer is CMC Triggers.
• The model/part number is BBL556003.
• Chambered for 5.56 NATO.
• Barrel length is 16 inches.
• The barrel features a 1:7 rate of twist.
• Designed for AR-platform rifles.
• Finish is Black.

This 16-inch AR barrel provides a straightforward, factory-specified option for shooters seeking a 5.56 NATO barrel with a 1:7 twist. Its specification set suits a range of lawful shooting activities where a 16″ barrel is appropriate, and the black finish offers a neutral, service-oriented appearance. Built to integrate into AR upper assemblies, it is a practical choice for users focused on reliable, standards-based components.