Building an AR-15 Upper

Ray from Moss Pawn and Gun walks through the steps of building an AR-15 upper. Components used include the Sharps Rifle Company Relia-Bolt, Anderson Manufacturing Receiver, Geissele Super Gas Block, BCM Gunfighter Charging Handle, A2 flash hider from Brownells, LBE Unlimited forward assist and gas tube, and ATI Forend.