One of the most popular and commonly available affordable surplus pistols on the market is the Spanish Star BM. Many of these guns made their way to the U.S. through importers throughout the 20th century, and although the guns can be found with ease, the magazines are another question entirely. Pro Mag now offers newly made magazines to keep these guns running. Each of Pro Mag's Star BM magazines have a body constructed from heat-treated steel, which is finished with a black-oxide treatment that protects against corrosion. Inside the magazine, you'll find an injection-molded follower that tops a magazine spring made from heat-treated chrome-silicone wire. These Star BM magazines made by Pro Mag are designed for 9mm cartridges only and are available in 8-round capacities. All of the magazines are made right here in the USA.