Made in the usa, the pmag 5 ac l, magnum is a reliable and durable polymer magazine for.300 winchester magnum-based family of cartridges and is compatible with long action aics-spec bottom metal, to include the bolt action magazine well 700l for the hunter 700l stock.Featuring gen m3 technology, a paint-pen dot matrix for visual identification, and a flared base plate for positive control and ease of retrieval, the pmag 5 ac, l magnum - aics sets a new standard for bolt action magazines.Caliber: 257 Wthby MagCapacity: 5rdFinish: BlackModel: PMAGMaterial: PolymerModel Fit: Bolt Action RiflesCapacity: 5