The F.A.I.R. Carrera IV over-and-under shotguns are the result of extensive research and designed for the most discerning competition shooter. The new Magnum 12-gauge over-and-under features barrels made of UM / 8 - HD40 steel with the proprietary X-Cones system. The barrels are chrome-lined to guarantee maximum resistance to wear while the external surfaces feature a deep bluing and a soft recoil-damping cone connects the barrel to the chamber. Barrels are ported to assist in the reduction of recoil. It also features the interchangeable Technichoke system automatic ejectors a finely checkered rib that reduces glare the rib also has a mid bead and fiber optic front sight. The tri-alloyed steel action has a polished coin finish with black lettering. The Carrera IV stock has the XR-STOCK® adjustment system and are oil finished with FX-WOOD system (OPTOWOOD patented).