Winchester Repeating Arms 112098801 XPR 3rd Box 338 Win Mag/300 Win Mag/7mm Rem Long Action Black Polymer

The XPRs detachable box magazine is constructed of a light yet rugged polymer and securely latches at both the front and rear for added security and to endure feeding reliability. The magazine is a slick and slim single stack design that feeds cartridges in a straight line right into the chamber. Nothing could be more straight-forward.