Springfield Armory factory magazines features high quality components and precise manufacturing that will ensure long-lasting performance and reliability.Fitment: Springfield 1911 Custom, Springfield 1911 Defender, Springfield 1911 Emissary, Springfield 1911 Master Class, Springfield 1911 Mil-Spec, Springfield 1911 Operator, Springfield 1911 Professional, Springfield 1911 Range Officer, Springfield 1911 Range Officer Compact, Springfield 1911 Ronin, Springfield 1911 TRP, 1911