Designed to fit your M1 Carbine chambered in .30 Carbine, this magazine provides smooth and reliable feeding. Constructed of steel with an electroplated finish, it utilizes a high-tensile strength compression spring and a bolt hold-open follower for long-lasting performance.Key FeaturesCapacity: Holds 30 rounds, ensuring ample ammunition for extended shooting sessions.Material: Constructed from steel with an electroplated finish for durability and corrosion resistance.Spring Mechanism: Features a high-tensile strength compression spring for reliable feeding.Follower Design: Equipped with a bolt hold-open follower for enhanced functionality.