This is a Ballistic Advantage Barrel known as the Modern chambered in 308 Winchester, model BABL308005M.
This .308 chambered (DPMS style) 18 inch Tactical Government Profile Modern Series Barrel is machined from 4150 Chrome Moly Vanadium steel with a QPQ Corrosion Resistant Finish and QPQ coated M4 feed ramp extension.
Features:
4150 Chrome moly vanadium
Tactical government profile
Bead blasted finish
Mid-length gas system
1:10 twist
