Glock Magazine Springs

ISMI manufactures magazine springs for Glock pistols that cover a broad range of applications; all the way from Plus 8 mag conversions to small frames such as the 19 and 23. As with our other mag springs, these are wound from certified aerospace spec materials; then they are heat treat, shot peened and stress relieved for maximum durability. We have had reports from law enforcement officers that they have left magazines fully loaded for almost 2 years with ISMI springs and encountered no functioning problems when the magazine was used.

Models 17, 17L, 22, 24, 34, 35 high capacity magazines and model 21 & 31 10 round magazines