HEXMAG Magazine, 308 Winchester/762NATO, 20 Rounds, Fits DPMS/SR25, Polymer, Black HX20-SR25S1-BLK Whether you're on the hunt or engaging a long-range target" you need a heavy-duty caliber that delivers power and precision" and When Every Round Counts" you can trust the SENTRY's Hexmag AR10/.308 SR25 magazine. These rugged magazines are constructed with SENTRY's iconic Hexture design pattern for durability" dependability and exceptional performance.