Barrel: This Chrome Moly vanadium 4150V barrel is chambered in .300 AAC Blackout with a 1:8" twist, M4 barrel extension, and a pistol-length gas system. It is phosphate treated for accuracy and durability, and is finished off with a .750" diameter gas block, PSA 13.5" lightweight keymod free float rail, and an A2 Flash Hider.
Upper: The forged 7075-T6 A3 AR upper is machined to MIL-SPECS and hard coat anodized. These uppers are made for us right here in the USA by a mil-spec manufacturer.
Includes: Magpul® MBUS Sight Set, Black
**This upper does not include BCG or Charging Handle**