•AR-10 .308 20" stainless steel bull barrel X-treme fluted, made from 416 stainless steel hardened to 26-32 rc and stress relieved.
•1-10 rh twist
•chambered in .308 winchester
•.936" diameter under gas block; rifle length gas system
•comes with barrel extension and extension pin installed. This barrel also has the gas port hole pre-drilled. Barrel extension has the m4 feedramps
•x-treme fluted. Fluting helps lighten the barrel, cool the barrel faster, and makes your rifle look great!