AR-15 5.56 16" stainless steel bull barrel. Made from 416 stainless steel hardened to 26-32 rc and stress relieved.
1-9 rh twist. 6 groove button rifled.
Chambered in 5.56 nato (also accepts .223 rounds).
.936" diameter under gas block.
Carbine length gas system.
Target crowned muzzle.
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.
