This CVA Apex RB4002S SS 50 Cal Muzzleloader barrel is brand new and its factory bubble pack. It is 416 stainless steel, 27" long, fluted and comes with a heavy duty ramrod and a "Dead-ON" black one piece scope base. It is drilled and tapped for a scope as well as front and rear sights (sights not included). The rate of twist is 1-28". This barrel only works on the CVA Apex single shot, break action platform. Barrels made by Bergara of Spain and are accuracy guaranteed. Note muzzleloader forends are extra.