Rise Armament RA-6ARC-CU-BRN-18 Complete Upper, 6MM ARC, 18 Inches Stainless Steel Barrel, Rifle Length Gas System, Free Float M-LOK Handguard, Cerakote Finish, Patriot Brown, Ambidextrous

Engineered for exceptional accuracy, this upper receiver boasts an 18-inch 416R stainless steel barrel with a 1:7 twist for optimal bullet stabilization and long-range shooting. The barrel is threaded at 1/2x28, allowing seamless attachment of suppressors, muzzle brakes, or other accessories to customize your setup. Equipped with a rifle-length gas system that ensures smooth cycling and reliable operation, even under demanding conditions. Includes a 15.25-inch free-float M-LOK handguard for versatile accessory mounting and improved ergonomics without adding unnecessary weight. Features a black nitride bolt carrier group for superior durability, corrosion resistance, and smoother action compared to standard components. Comes with an ambidextrous charging handle for easy manipulation, making it ideal for both right- and left-handed users. Finished in a high-quality Cerakote coating in Patriot Brown, providing excellent protection against wear, rust, and environmental elements while maintaining a sleek, professional appearance.

Features:

• Forged Billet Aluminum Receiver.
• 6mm ARC.
• 18 1:7 Twist 416R Stainless Steel Barrel.
• 1/2x28 Threaded.
• Rifle Length Gas System.
• 15.25 Free Float M-LOK Handguard.
• RISE Ambidextrous Charging Handle.
• Black Nitride Blot Carrier Group.
• Patriot Brown Cerakote Finish.

Specifications:

• Type: Upper
• Description: M-LOK
• Manufacturer Part: RA-6ARC-CU-BRN-18
• Type of Barrel: 1:7
• Color: Patriot Brown
• Manufacturer: Rise Armament
• Sub Category: Complete Upper Receivers
• Barrel Length: 18"
• Finish: Cerakote
• Caliber: 6MM ARC