Built with precision and reliability in mind, the Rock River Arms RRA CMPLT CAR A4 UPR 350LGD 16" 10RD ensures smooth operation with its 16" chrome moly barrel and RRA Operator Muzzle Brake. This complete upper receiver is designed for AR-15 compatibility, featuring an anodized black finish and a 13" M-LOK handguard for enhanced handling.\n\nIdeal for range training and recreational shooting, this upper receiver offers a dependable performance that Rock River Arms is known for. It includes a bolt carrier group, charging handle assembly, and a 10-round magazine, making it a comprehensive choice for enthusiasts.\n\n- Manufacturer: Rock River Arms\n- Model: Tactical Carbine\n- Caliber: 350 Legend\n- Condition: New\n- Action: Semi-Automatic\n- Finish Color: Anodized Black\n- Barrel Length: 16"\n- Number of Magazines: 1\n- Capacity: 10\n- Optic Footprint: None\n- Unique Features: RRA Operator Muzzle Brake, 13" M-LOK Handguard\n- Night Sights: No\n- External Safety: No\n- Threaded Barrel: Yes\n- What's In The Box: Bolt Carrier Group, Charging Handle Assembly, 10-Round Magazine\n- Weight: 6.31 lbs\n- Length: 32.25"\n- Width: 5.75"