AR-10 .308 20" stainless steel heavy hbar straight fluted barrel, made from 416 stainless steel hardened to 26-32 rc and stress relieved. Straight fluted. Fluting helps lighten the barrel, cool the barrel faster, and makes your rifle look great. DPMS 308 compatible.
• 1-10 rh twist
• chambered in .308 win
•.750" diameter under gas block, rifle length gas system
• standard 5/8-24 threads for muzzle device
• comes with barrel extension and extension pin installed. This barrel also has the gas port hole pre-drilled. Barrel extension has the m4 feedramps