4.) 1- 6.0 lb Firing Pin Spring (Self-Defense Configuration)
5.) 1- Reduced power firing pin safety spring
Please Note: The 4.0 lb Firing Pin Spring may cause light primer strikes in some pistols and this is the Target/Sport configuration. For Self Defense or in a 10mm/45 caliber GLOCK we recommend the 6.0 lb firing pin spring or keep stock firing pin spring and use the 6lb. trigger spring and the reduced power safety plunger spring.