This kit is what Frank Proctor recommends and run for the standard Glock models.
GLOCK Models: 17, 18, 19, 20, 22, 23, 24, 26, 27, 29, 31, 32, 33, 34 & 35
The ZEV pro connector on average will deliver a 15% reduction in trigger pull weight from a stock Glock trigger. Compatible with all Glocks Gen 1-5 except for the G42 and G43.
Warning: This spring is for competition use only - not for duty use.
WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov