CMMG Resolute MK4 AR-15 Complete Upper Receiver – 16.1″ – 6mm ARC – Armor Black Cerakote

Rise Armament 18″ Assembled AR-15 Upper – 6MM ARC – 18″ Stainless Steel Barrel – Rifle-Length – 15.25″ Handguard – BCG & Ambi CH – Black