5.56 10.5" Carbine Gas AR15 Barrel- Nitride

• Chamber- 5.56 NATO

• Length- 10.5"

• Gas system- Carbine Length

• Gas Block Size- .750

• Threads- 1/2-28

• Finish- Nitride

• Twist- 1:7

• Material- 41V50 Chrome Moly Vanadium

• Extension- M4 Feed Ramps

• Marked for Caliber and Twist

• Weight- 20.58 OZ