AR-15 5.56 16" stainless steel bull barrel 1-9

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.