Rock River Arms has a reputation for machining the highest quality and most accurate rifles in the market. Their success is attributed to the quality control measures every part and firearm must pass. Expanding their busines model, they now sell the same high quality parts individually. This complete upper receiver is a true testament to the quality parts Rock River machines.
Features and Specifications:
Manufacturer Number: BB0400
Caliber: 5.56 NATO (accepts .223 Remington)
Receiver Material: Extruded Aluminum A4
Port Door, No Forward Assist
Barrel Length: 16"
Barrel Twist: 1:9
Barrel Material: Lightweight Chrome Moly
Muzzle: A2 Flash Hider
Muzzle Thread: 1/2x28
Gas Operation: CAR Length Gas System, Low Profile Gas Block
Handguard Length: CAR Length
Handguard Style: Free Float
Handguard Material: Aluminum
Handguard Rails: M-LOK, MIL-STD-1913 Picatinny Top Rail
Overall Weight: 4.0 lb.
Includes:
Bolt Carrier Group
Charging Handle Assembly
