Ruger American Rifle Predator, Bolt-Action Rifle, 308 Win, 18 Threaded Barrel, Matte Black Finish, Alloy Steel, Moss Green Composite Stock, 4Rd Rotary Magazine 06974 The Ruger American features an ergonomic, lightweight synthetic stock designed for quick, easy handling and blends a classic look with modern forend contouring and grip serrations. The one-piece, three-lug bolt with 70 degree throw provides ample scope clearance and utilizes a full diameter bolt body and dual cocking cams for smooth, easy cycling from the shoulder.