The Eemann Tech Mag Spring for Glock (33 Rounds) is a 17-coil replacement spring designed for extended Glock magazines.
Made from heat-treated steel, it features a progressive spring design that provides consistent pressure for reliable feeding and extended service life.
17-coil magazine spring
Fits 9x19mm Glock 33-round magazines
Also compatible with .40 S&W Glock 22-round magazines