Accurate-Mag AICS Pattern Double Stack Magazine .308 Win 10 Round Long Cartridge. This Accurate-Mag magazine is designed from strong steel heat treated for the highest durability and boasts black Teflon finishing for improved longevity. The magazine has no blinder plate for longer cartridges and is designed to fit the Accuracy International Chassis System (AICS). This magazine fits .308 Winchester and 7.62x51mm rounds in a double-stack single-feed configuration with a 10 round capacity. Accurate-Mag offers the perfect magazines for any shooter.