Hexmag(R) Shorty Series 2 magazine is designed for compatible AR-15-pattern firearms chambered in 5.56 NATO and .223 Remington. The magazine provides a 10-round capacity in a 20-round-profile body and features clear polymer construction. It provides a reduced-capacity magazine option while retaining the profile of a larger AR-15 magazine.Key Features Designed for compatible AR-15-pattern firearms Compatible with 5.56 NATO and .223 Remington ammunition 10-round capacity 20-round-profile magazine body Shorty Series 2 configuration Clear polymer constructionHexmag(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.