Browning X-Bolt magazine is the perfect replacement magazine for your X-Bolt Rifle. This magazine is capable of holding 3 rounds of either .300 Winchester Magnum or .338 Winchester Magnum. It features a polymer construction body with Burnt Bronze Cerakote FInish. This magazine is made to Browning's specifications and tolerances, using the same manufacturing and materials as the original equipment magazines, ensuring perfect fit and operation.