AR-15 5.56 24" nato stainless steel barrel straight fluted 1-9 twist. Chambered in 5.56 nato.
- Made from 416 stainless steel hardened to 26-32 rc and stress relieved.
- 1-9 rh twist. 6 groove button rifled.
- .936" diameter under gas block.
- Rifle length gas system.
- Target crowned.
- Comes with barrel extension and extension pin installed. This barrel also has the gas port hole pre-drilled. Barrel extension has the m4 feedramps.