Benelli Replacement Barrels - Carlson's high quality accessory shotgun barrels are made for Benelli SuperNova and Nova models. All barrels are constructed from certified ordinance grade 4140 steel with chrome lined bores. Vent rib models have a satin matte blue finish with red flourescent front sight and brass center bead. - All 18 1/2 barrels are non vent ribbed and have a ramped front sight with a matte finish. Each barrel comes with a Carlson choke tube manufactured from 17-4 stainless steel except for the rifled choke tube models which are made from 304 high stress stainless steel installed. All of our Benelli replacement barrels are threaded for the Benelli Mobil choke style system. Enhance the versatility and performance of your shotgun with a Carlson's replacement shotgun barrel. These barrels are 12ga only.