AR-15 5.56 11.5" stainless steel hbar barrel 1-8 twist. Threaded 1/2-28 for attaching muzzle device.
- Made from 416 stainless steel hardened to 26-32 rc and stress relieved.
- 1-8 rh twist, button rifled.
- Chambered in 5.56 nato (also accepts .223 rounds).
- Carbine length gas system .750"diameter under gas block.
- 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.