Mec-Gar, based in Italy, is the world’s largest manufacturer of firearm magazines. They produce magazines for notable brands, such as Beretta, Kimber, Ruger, Smith & Wesson, Sig Sauer, and more. In addition, they manufacture magazines directly for CZ, as well as their own labeled CZ 75 magazines.
Other brands produce aftermarket extended and drum magazines, such as Promag.