Shop › MAG MDT LA 3.715 300WM 5RD METAL BLK MAG MDT LA 3.715 300WM 5RD METAL BLK $79.95 MDT Magazine, 300 Winchester Magnum, 5 Rounds, Fits Long Action 3.715" AICS Pattern, Black 102143-BLK Quantity: Add To Cart Added! MDT Magazine, 300 Winchester Magnum, 5 Rounds, Fits Long Action 3.715" AICS Pattern, Black 102143-BLK