Loaded with innovative features and patented designs, these standard capacity Hexmag Series 2 magazines deliver are a whole new breed of combat-ready AR-15 magazines. Sentry’s Hexmag magazines are some of the strongest, most versatile and most dependable options on the market today. Features include patented Hexture surface design for superior handling, torture-tested design, stainless steel internal springs and the industry’s first integrated ammo ID system.