Default sorting Sort by popularity Sort by average rating Sort by latest Sort by price: low to high Sort by price: high to low View: 12 24 All [18″] 6mm ARC Upper with Stainless BarrelFrom: $479.00… Select options [18″] 6mm ARC Upper with Black Cerakote BarrelFrom: $499.00… Select options [18″] 6mm ARC Upper with Titanium Cerakote BarrelFrom: $499.00… Select options