Ballistic Advantage Modern Series barrels are machined from 4150 Chrome Moly Vanadium Steel and finished with a corrosion resistant QPQ Salt Bath Nitride treatment. The M4 feed ramp extension also has a QPQ finish.
| Caliber | .308 Win |
| Barrel Length | 20" |
| Twist Rate | 1:10 |
| Gas System | Rifle Length |
| Barrel Profile | Heavy |
| Inside Finish | Salt Bath Nitride |
| Outside Finish | Salt Bath Nitride |
| Material | 4150 Chrome Moly Vanadium |
| Weight | 52.5oz |
| Muzzle Thread | 5/8x24 TPI (Threads Per Inch) |
| Diameter At Gas Port | .750" |
