8 rounds .45 ACP magazine for full size government / commander model 1911 pistols. Manufactured to hold exacting tolerances for extreme reliability. Constructed of heat treated carbon steel with a black oxide finish to provide years of dependable service. The follower is precision molded from glass filled nylon polymer for smooth feeding. Heat treated chrome silicone spring enhances reliability and allows for long term storage of loaded magazines without loss of spring tension. Low profile endplate compatible with extended magazine wells.