11.5" 5.56 Carbine Classic Series w/ FSB AR15 Complete Upper (No Handguard)

Includes:AR15 Assembled Upper Receiver11.5" 5.56 Government Profile Carbine Length Barrel, Classic SeriesFSB, Delta Ring Assembly, and Carbine Length Gas TubeProduct comes completely assembledThis complete upper does not include a BCG, Charging Handle, or Muzzle Device. These products may be selected as add-ons under the drop-down menusAll Parts Made in the USAAR15 Upper Features:Forged from 7075-T6 aluminumM4 Feedramps.250 takedown pin holesLaser engraved T-marksIncludes port door and forward assist11.5" 5.56 Government Carbine Length Barrel, Classic Series Features:Twist: 1:7 inchesThreading: 1/2X28Material: CrMoVFinish: Finish PhosphateGas Block Journal: .750Gas System Length: Carbine Length