Rock River Arms 20in Predator HP Upper V2

Rock River Arms Predator Hp Upper Half .243 Win, 20″ Ss Fluted Brl, 1:10 Twist, Bead Blasted, Cryo Treated,Operator Brake, 17″ M-Lok Hndgrd Specifications for Rock River Arms 20in Predator HP Upper V2: Manufacturer: Rock River Arms Cartridge: .243 Winchester Overall Length: 30 in Barrel Length: 20 in Barrel Profile: Standard Gas System Length: Rifle Length Barrel Twist Rate: 1-10 Threads per Inch: 5/8×24 Handguard Type: Free-Float Muzzle Device: RRA Operator Brake Color: Steel Fabric/Material: Stainless Steel Handguard Length: 17 in Gun Rail: Full Top Rail Gun Model: Universal Weight: 6 lb Magazine Included: No Package Contents: Rock River Arms 20in Predator HP Upper V2 Bolt Carrier Group Charging Handle Assembly