This replacement or spare magazine features a superior rotary design magazine is constructed from a durable lightweight polymer.It feeds cartridges directly in line with the bolt instead of offset as with traditional leaf-spring magazines for a straight path right into the chamber.The magazine features ergonomic magazine-mounted release.FeaturesCaliber: 6.5 CreedmoorCapacity: 4rdFinish: BlackModel: OEMMaterial: PolymerType: DetachableModel Fit: X-BoltBrand Fit: BrowningCapacity: 4