308 18" AA Battlerail Upper Receiver

Complete 18" Anonymous Arms 308 AR10 Upper Receiver with Mid Length gas system and a Chromoly Heavy Barrel with 1/10 Twist and KAK 5/8x24 Flash Can. Anonymous Arms 14" 308 Battlerail. All Mil-spec, US Made parts including a 308 nitride Bolt Carrier Group and Fortis Hammer Nickelene Charging Handle.