Replaced my old G17 mag springs.
When I bought the Taran +6 baseplates for my G17 a few years ago, they were fine at first but over time I noticed spring weakening. The rounds became easier and easier to load and these mags wouldn’t always achieve slide-lock upon firing the last round (I’d estimate this occurred about 3 out of 10 reloads). When I received these new springs, I could tell right away that they were MUCH stronger. The rounds were much harder to load and when I tested them out on the range I had no slide-lock issues whatsoever. I’m very pleased to be able to fully trust my +6 baseplates once again.