Increased pressure stabilizes the follower and improves feeding, especially on high-capacity magazines. Glock - Hi-Cap 17 fits 17, 17L, 20 (15-rd), 22, 31 (15-rd), 34 (17- and 19-rd), and 35 (15-rd). Hi-Cap 19 fits 19 (15- and 17-rd), 21 (10- and 13-rd), 23 (10- and 13-rd), 26, 27, 29, 30, 33 (10-rd). Big Stick fits high capacity, 31- and 33-round magazines.
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Customer ratings for WOLFF +5% POWER SPRING, 3-PAK FITS GLOCK® BIG STICK,31/33 RD MAGS
Number of ratings: 5
From brownells.com: 4
Average rating: 5
Must have for +2 extensions(16/05/2023)
These are a must have for +2 extensions or even for older standard glock mags. Noticeably stiffer with better return however not so stiff that loading the magazine becomes a chore! 100% would buy again.
Awesome Springs(12/12/2010)
Wolff makes some awesome springs. This function perfectly and add that extra bit of oomph that keeps the magazine working well. I replaced the worn factory springs with these on my Glock 27. The mags are back to tip top performance. I can't recommend Wolff highly enough. I will be purchasing more.
Excellent Spring for Reliablity(30/01/2015)
I use these springs in all of my Glock magazines that I shoot in USPSA and IDPA. You will notice the difference when loading up the first round in your magazine of the resistance vs. the standard OEM spring. These will definitely make your pistol more reliable feeding ammo. I replace brand new magazines with these springs as soon as I get them.
Problem solver for Glock magazines(11/06/2015)
This spring will take care of problems with feeding issues to include locking the slide when the last round is fired.
Must have for the Victory Glock 31rd Mag(23/10/2009)
This is a great mag spring that works awsome in the Korean made Victory 31rd mags. The mags are very well constructed but the springs are very under power. This is a most have if you have 31rd mags.
Increased pressure stabilizes the follower and improves feeding, especially on high-capacity magazines. Glock - Hi-Cap 17 fits 17, 17L, 20 (15-rd), 22, 31 (15-rd), 34 (17- and 19-rd), and 35 (15-rd). Hi-Cap 19 fits 19 (15- and 17-rd), 21 (10- and 13-rd), 23 (10- and 13-rd), 26, 27, 29, 30, 33 (10-rd). Big Stick fits high capacity, 31- and 33-round magazines.
More...
Customer ratings for WOLFF +5% POWER SPRING, 3-PAK FITS GLOCK® BIG STICK,31/33 RD MAGS
Number of ratings: 5
From brownells.com: 4
Average rating: 5
Must have for +2 extensions(16/05/2023)
These are a must have for +2 extensions or even for older standard glock mags. Noticeably stiffer with better return however not so stiff that loading the magazine becomes a chore! 100% would buy again.
Awesome Springs(12/12/2010)
Wolff makes some awesome springs. This function perfectly and add that extra bit of oomph that keeps the magazine working well. I replaced the worn factory springs with these on my Glock 27. The mags are back to tip top performance. I can't recommend Wolff highly enough. I will be purchasing more.
Excellent Spring for Reliablity(30/01/2015)
I use these springs in all of my Glock magazines that I shoot in USPSA and IDPA. You will notice the difference when loading up the first round in your magazine of the resistance vs. the standard OEM spring. These will definitely make your pistol more reliable feeding ammo. I replace brand new magazines with these springs as soon as I get them.
Problem solver for Glock magazines(11/06/2015)
This spring will take care of problems with feeding issues to include locking the slide when the last round is fired.
Must have for the Victory Glock 31rd Mag(23/10/2009)
This is a great mag spring that works awsome in the Korean made Victory 31rd mags. The mags are very well constructed but the springs are very under power. This is a most have if you have 31rd mags.