Mossberg 85159 940 Pro 12 Gauge 3 4+1 28 Matte Blued, Tungsten Gray Rec with Blue Accents, Black Synthetic Furniture, Fiber Optic Sight, Enhanced Internal Parts Kit, Briley Extended Chokes Included

Inside, you will find a durable gas system that allows for up to 1500 rounds between cleanings, and a host of corrosion-resistant internal parts/finishing (nickel boron-coated gas piston/rings, magazine tube, hammer/sear, shell stop), enlarged/beveled loading port, elongated elevator, and anodized follower for smooth operation.