The Iver Johnson Arms 1911 Government magazine is a factory-pattern 10-round detachable box magazine built specifically for full-size 9mm Luger 1911 Government-model pistols. Constructed from steel with a durable black finish, this single-stack magazine is engineered as a direct-fit replacement or spare for the Government-length 1911 frame. Sized at approximately 6.35″ long with a 0.75″ x 2.95″ profile, the magazine feeds 9mm Luger ammunition smoothly into a Government-pattern pistol and is the correct fit for Iver Johnson 1911 Government models as well as other standard full-size 1911 Government frames chambered in 9mm.