These springs fixed the issue i had from adding the +2 round bases on my Glock 21. Before these i had inconsistant feeding and jams. These springs cured that issue 100%, they cost less than Wolff springs and shipped 10 times quicker.

I'm a competitive shooter. I rebuild my mags every year. This year I've been running my Glock 21 and when I went to order piwer springs it didn't seem that anyone had them. So I ordered these and I'm glad I did. They are well built and should be great for the upcoming year. I'll definitely buy them again.

14 rds With a pearce +1 this spring is perfect. G30 users using 13 rd g21 mags need this. G30 requires more spring power to assist feeding and although the g21 works decently with oem spring, there is possible ftf with +p or super rounds. I have a G30s 45super.