Alexander Arms .50 Beowulf 16inch Chrome Moly Barrel Tactical Upper Receiver 1-20 Twist 49/64x20 Threads Black Anodized

Alexander Arms .50 Beowulf 16inch Chrome Moly Barrel Tactical Upper Receiver 1-20 Twist 49/64x20 Threads Black Anodized. 50 Beowulf ammunition will void the warranty on upper receivers rifles and DIY kits. Specifications for Alexander Arms .50 Beowulf 16inch Chrome Moly Barrel Tactical Upper Receiver: Manufacturer: Alexander Arms Caliber: .50 Beowulf Overall Length: 24 in Barrel Length: 16 in Gas System Length: Carbine Length Barrel Twist Rate: 1-20 Firearms Threads Per Inch: 49/64x20 Muzzle Dev