Cmmg Barrel Sub-assembly, Cmmg 55de10a Barrel 16.1 M4 4140cm 556

Cmmg's barrel sub-assembly is ideal for building your custom ar-15 upper group.It comes with properly installed m4 barrel extension.

Caliber Or Gauge: 223 Remington/5.56 NATO
Length: 16.10"
Model: Barrel Sub-Assembly
Twist: 1:7"
Sights: None
Finish: Nitride
Type: Rifle
Barrel Type: Carbine Length
Barrel Features: M4 Profile