Wilson Combat Match Grade Barrel 18 Fluted 5.56 NATO 416 SS. 56 NATO 416 Stainle - Specifications for Wilson Combat TR556RCRG18FT8 Match Grade Barrel 18" Fluted 5.56 NATO 416 Stainle: Manufacturer: Wilson Combat Finish: Bead Blasted Stainless Steel Caliber: 5.56x45mm NATO Barrel Length: 18 in Package Contents: Wilson Combat TR556RCRG18FT8 Match Grade Barrel 18" Fluted 5.56 NATO 416 Stainle The Wilson Combat TR556RCRG18FT8 Match Grade Barrel 18" Fluted 5.56 NATO 416 Stainle is a quality addition to the Wilson Combat lineup. For more great deals on AR15 Barrels by Wilson Combat please browse our Wilson Combat Gun Parts page.