AR-15 300 blk 16" stainless steel straight fluted barrel 1-7 twist. This barrel has the gas port hole pre-drilled.
- Made from 416r stainless steel hardened to 26-32 rc and stress relieved. 1-7 rh twist.
- Chambered in 300 blackout.
- .750"diameter under gas block.
- Carbine length gas system.
- 5/8-24 thread for attaching muzzle device.
- Comes as seen in picture with barrel extension and extension pin installed. Barrel extension has the m4 feedramps.