These eight-round magazines have polymer followers and baseplates in addition to music wire internal springs that are constructed from durable, heat-treated, blued, or nickel carbon steel. The wider baseplate, which was created for battle and competition, enables positive handling and quicker reloads. The 1911 magazines from Mec-Gar® combine the most reputable magazine manufacturer in the industry with the most well-known semi-automatic pistol design in history. These magazines are the ideal update for your favorite because they constantly improve on materials, manufacturing, and design. 45. Since focusing solely on producing guns magazines for the past 50 years, Mec-Gar has produced over 100 million magazines internally and earned a reputation as the industry leader in this field. American made.