The Savage A17 Rifle Magazine is a standard OEM factory replacement magazine. Factory replacement parts are manufactured to the exact same specifications and tolerances and use the same manufacturing materials as the original parts which guarantees excellent fit and reliable operation. This is a 10-round rotary magazine for the high velocity 17 caliber Hornady Magnum Rimfire. It's made of high strength black polymer and securely locks into the receiver of your Savage rifle. It's never a bad idea to have a few extra magazines on hand for your next hunt so pick up a few of these Savage factory OEM Model A17 rotary magazines today!