We have combined our polished Ultimate 3.5 LB. Drop-in Trigger Connector with Three Premium Springs
1.) 1- 4.0 LB. Firing pin spring
2.) 1- 6.0 LB. Trigger spring
3.) 1- Reduced power firing pin safety spring in a kit.
These combinations will give you the benefits of a self cleaning trigger connector with the lightest, safest & smoothest drop-in trigger assembly you can buy! And you save some money! Not for self defense if you use the 4.0 lb Firing Pin Spring and the reduced power firing pin safety spring . If you want to use for self Defense or in a 10mm/45 caliber Glock use the 6.0 lb firing pin spring and a standard Glock firing pin safety spring.