Alexander Arms KIT50 OEM Upper Kit 50 Beowulf 16″ Black Barrel, Aluminum Black R

The 50 Beowulf DIY Upper Kit includes: 16″ barrel with 1:20 twist, 49×64-20 tpi thread and thread protector; complete upper receiver; charging handle; gas block; dowel pins; gas tube; complete BCG with bolt; one 7-round mag. NOTE: Requires handguard to complete. Type: Semi-Complete Caliber: 50 Beowulf Sights: None, Optic Ready Barrel Length: 16″ Twist: 1:20″ Barrel Finish: Black Receiver Finish: Black Barrel Length Range: 16″ to 16.99″