GC_UPC TacFire BU-308-18 Rifle Upper Assembly 308 Win Caliber 18 in Black Nitride Barrel, Black Anodized 7075-T6 Aluminum Receiver & M-LOK Handguard for AR-Platform Includes Bolt Carrier Group $409.77 BU30818 show more like this Flat Rate Starting at $11.99 Hinterland Outfitters GC_UPC TacFire Rifle Upper Assembly Black .308 Win 18" Barrel $416.99 BU30818 show more like this 14.84 GrabAGun.com GC_UPC TacFire BU30818 Rifle Upper Assembly 308 Win 18" Black Nitride Barrel 7075-T6 Aluminum Black Anodized Receiver M-LOK Handguard for AR-Platform $429.79 BU30818 show more like this $10.95 flat rate GunStuff TV GC_UPC Tacfire Bu30818 Rifle Upper Assembly 308 Win 18" Black Nitride Barrel 7075-T6 Aluminum Black Anodized Receiver M-Lok Handguard For Ar-Platform BU-308-18 729205515323 $432.87 BU-308-18 show more like this Firearms $18.45, Free over $500 Shooting Surplus