Hexmag(R) Shorty Series 2 magazine is designed for compatible AR-15-pattern firearms chambered in 5.56 NATO and .223 Remington. The detachable polymer magazine provides a 20-round capacity and features a clear body for visual identification of remaining ammunition. Its compact Shorty configuration provides a reduced-profile magazine option for compatible AR-15 applications.Key Features Designed for compatible AR-15-pattern firearms Compatible with 5.56 NATO and .223 Remington ammunition 20-round capacity Shorty Series 2 configuration Clear polymer magazine body Detachable magazine designHexmag(R) manufactures firearm magazines and related accessories for popular rifle platforms. The company develops polymer magazine products with an emphasis on durable construction functional design and dependable operation. Hexmag products are manufactured with attention to compatibility material performance and consistent fit.