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 [20″ Fluted] 6.5 Grendel Upper with Stainless BarrelFrom: $529.00… Rated 5.00 out of 5Select options [20″] 6.5 Grendel Upper with Black Cerakote BarrelFrom: $509.00… Rated 5.00 out of 5Select options [20″] 6.5 Grendel Upper with Titanium Cerakote BarrelFrom: $509.00… Select options [20″] 6.5 Grendel Upper with Stainless BarrelFrom: $489.00… Rated 5.00 out of 5Select options [20″ Fluted] 6.5 Grendel Upper with Black Cerakote BarrelFrom: $549.00… Rated 5.00 out of 5Select options [20″ Fluted] 6.5 Grendel Upper with Titanium Cerakote BarrelFrom: $549.00… Select options