Ballistic Advantage Premium Black Series Barrel .308 Win 18 inch Hanson Midlength 1-10 Twist 5/8 x 24 Thread Anodized Black. 308 Win Hanson Midlength Premium Black W/15" BA10 ATLAS R-One M-LOK Handguard Complete Upper Specifications for Ballistic Advantage Premium Series .223 Wylde Barrel Upper Receiver: Manufacturer: Ballistic Advantage Muzzle Device: No Finish: Anodized Color: Black Fabric/Material: 416R Stainless Steel Weight: 32 oz Barrel Material: 416R Stainless Steel Magazine Included: No Charging Handle Included: No Country of Origin: USA Features of Ballistic Advantage Premium Black Series Atlas .308 Win Barrel Upper Receiver Forged from 7075-T6 aluminum Threaded Forward Assist Roll Pin - Allows for simple installation of the forward assist and eliminates the chance to damage the finish during installation (pin included). M4 Feedramps .2795 takedown pin holes DPMS High Profile (.210) Tang Ballistic Advantage branded Laser engraved T-marks Includes port door and forward assist Package Contents: Ballistic Advantage Premium Black Series Atlas .308 Win Barrel Upper Receiver BA10 Assembled Enhanced Upper Receiver 15in BA10 ATLAS R-One M-LOK Handguard 16in .308 Win Hanson Midlength AR 308 Barrel Premium Black Series Pinned .875in Lo-Pro Gas Block Midlength Stainless Steel Gas Tube Product comes completely assembled This complete upper does not include a BCG Charging Handle or Muzzle Device. These products may be selected as add-ons under the drop-down menus Ballistic Advantage BAUR00117: Premium Black Series Barrel .308 Win 18 inch Hanson Midlength 1-10 Twist 5/8 x 24 Thread Anodized Black