The Hatfield USA Semiautomatic Shotgun's SAS operating system uses gas and inertia to cycle shots with minimal moving parts for maximum dependability. The gas piston moves only 1" to kick the bolt rearward and start the bolt's inertia through the operating cycle. The 28" barrel accepts 2-3/4" and 3" shells and features a full-length ventilated rib. The barrel and machined 7075-aluminum receiver boast high-gloss black anodizing for corrosion resistance. Walnut buttstock and forend with deluxe checkering. Fiber-optic sight. Includes three chokes (F, Mod and IC).