AR-15 5.56 16" stainless steel lightweight pencil barrel. Made from 416 stainless steel, hardened to 26-32 rc and stress relieved.
- 1-7.5 rh twist. 6 groove button rifled.
- Chambered in 5.56 nato (also accepts .223 rounds).
- .625" in front of gas block, .625" behind gas block, tapering up to .980 at chamber
- .750"diameter under gas block
- Mid length gas system
- 1/2-28 standard threaded muzzle end to accept muzzle brakes/compensators.
- 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.