CMC Triggers BBL556001 5.56 NATO 7.50″ Button-Rifled Barrel

Description

This CMC Triggers BBL556001 barrel is a 7.50″ button-rifled component chambered for 5.56 NATO. It is manufactured from Chrome Moly Vanadium steel and finished for use in AR-style assemblies. The barrel features a 1:7″ rate of twist suitable for stabilizing a wide range of 5.56 projectiles in compact configurations.

Key Specifications

• The manufacturer is CMC Triggers.
• The model designation is BBL556001.
• The chambering is 5.56 NATO.
• The barrel length is 7.50″.
• The material is Chrome Moly Vanadium Steel.
• The rifling process is Button Rifled.
• The rate of twist is 1:7″.
• The product category is AR Barrels.

Compact and purpose-built, this barrel suits AR-style short-barrel builds where a durable, fast-twist tube is required. Its chrome moly vanadium construction and button rifling deliver consistent rifling and longevity for regular use. The 1:7″ twist helps stabilize heavier 5.56 projectiles commonly used in precision and duty-oriented setups. For builders and technicians assembling a compact AR configuration, this barrel provides a reliable, well-specified option.