I just purchased a pair of 1911 7 round magazines on ebay, mainly because they looked good, made in USA, and the price was great. The listing is titled "New 2 Pack Colt 1911 .45 ACP 7 Round Magazines" . They are made by Target Sports and sold by Mag Commanders in Las Vegas. These were terrible and thankfully they are giving a full refund including shipping.
They are made of stainless steel as advertised but they were actually 8 round magazine bodies but blocked to hold only 7 rounds. Also the follower had no guide and which made loading, especially the first round, a challenge. The follower dragged during cycling which caused a failure to chamber in 3 of the 7 cartridges as I manually racked the slide.
SAVE YOUR MONEY AND TIME, I would avoid anything from this seller as they appeared to be misleading in the title saying they were Colt magazines and they are definitely up to good shooting standards.