Rise Armament RA6ARC 6 ARC 18-inch Upper Receiver

Description

The Rise Armament RA6ARCCUBRN18 is a complete upper receiver built for the 6mm ARC cartridge. It pairs an 18-inch 416R stainless steel threaded barrel finished in Black Cerakote with an aluminum upper and an M-LOK handguard. The 1:7 twist rate supports stabilization for appropriate 6mm ARC projectiles, making this upper suitable for deliberate range and precision-oriented use.

Key Specifications

• This complete upper is the Rise Armament RA6ARCCUBRN18.
• Caliber is 6 ARC.
• The barrel material is 416R stainless steel.
• The barrel measures 18 inches.
• The barrel finish is Black Cerakote.
• The twist rate is 1:7.
• The barrel is threaded.
• The handguard interface is M-LOK.
• The upper receiver material is aluminum.
• The exterior color is Patriot Brown.

Engineered for a balance of accuracy, durability and modern modularity, this Rise Armament 6 ARC upper is well-suited for precision-focused range builds. Its 416R stainless barrel, Cerakote protection and M-LOK compatibility provide a dependable platform for shooters assembling a dedicated 6mm ARC setup.