Made from 416 stainless steel hardened to 26-32 rc and stress relieved.
• 1-10 rh twist
• chambered in .308 winchester
• carbine length gas system, .936" diameter under gas block
• target crowned
• comes as seen in picture with barrel extension and extension pin installed. This barrel also has the gas port hole pre-drilled. Barrel extension has the m4 feedramps
• spiral fluted. Fluting helps lighten the barrel, cool the barrel faster, and makes your rifle look great!