The ASC AR-15 Magazine delivers exceptional reliability with 30-round capacity for .223/5.56 and .300 Blackout ammunition featuring premium 6061 aluminum construction and Flat Dark Earth finish.ASC AR-15/M4/M16 Magazine - 30 Round Capacity6061 Aluminum Body heat treated to T6 conditionHard-coat anodized per MIL-A-8625 Type III class IChrome Silicon Springs for reliable feedingGray Mil-Spec Polymer FollowerCompatible with .223/5.56 and .300 Blackout100% USA manufactured with cutting-edge robotic technologyFlat Dark Earth finish with black anodized floorplateEngineered to exceed industry standards this lightweight aluminum magazine provides dependable performance for AR-15 M4 and M16 platforms with flawless functionality and long-lasting durability.