Built with precision and durability in mind, the RISE Armament RISE CMPLT UPPR 6MM ARC 18" PAT BRN features an 18-inch 416R stainless steel barrel with a 1:7 twist, ensuring exceptional accuracy and stability. The Patriot Brown Cerakote finish not only adds a unique aesthetic but also provides superior corrosion resistance.\n\nIdeal for range training and recreational shooting, this upper receiver offers a reliable performance that RISE Armament is known for. With a reputation for quality and innovation, RISE Armament continues to deliver products that meet the needs of shooting enthusiasts.\n\n- Manufacturer: RISE Armament\n- Model: RISE CMPLT UPPR 6MM ARC 18" PAT BRN\n- Caliber: 6mm ARC\n- Condition: Factory New\n- Action: Semi-Automatic\n- Finish Color: Patriot Brown Cerakote\n- Barrel Length: 18"\n- Number of Magazines: 1\n- Capacity: 30\n- Optic Footprint: Picatinny Rail\n- Unique Features: Free Float M-LOK Handguard, Ambidextrous Charging Handle\n- Night Sights: No\n- External Safety: No\n- Threaded Barrel: Yes\n- What's In The Box: Upper Receiver, Charging Handle, Bolt Carrier Group\n- Weight: 5.97 lbs\n- Length: 35.8"\n- Width: 4.4"