Ballistic Advantage Classic Series 16" 1:7 twist Barrel with a Carbine Length gas system, M4 barrel profile and chambered for 5.56 NATO.
Ballistic Advantage Classic Series barrels are machined from 4150 Chrome Moly Vanadium Steel and finished chrome lined bore and chamber with a manganese phosphate finish and phosphate coated M4 feed ramp extension..
||4150 Chrome Moly Vanadium
||1/2x28 TPI (Threads Per Inch)
|Diameter At Gas Port