LANTAC USA Ultimate Spring 4.5lb Trigger Spring Kit for Glock 17/19 Gen 1-4

The LANTAC USA Ultimate Spring Set is a drop-in two-spring upgrade kit for Glock 17 and Glock 19 pistols in Gen 1 through Gen 4 configurations. It is designed as a shooter-focused trigger upgrade that smooths and lightens the factory pull without altering any frame or trigger-bar geometry.

The set includes a 4.5 lb reduced-power trigger spring and a matching reduced-power firing pin safety spring. Together they reduce the resistance on the trigger safety lever and connector engagement for a cleaner break and a quicker reset, while keeping the pistol's internal safeties and drop-safe function operating as designed.

Installation requires partial disassembly of the pistol to separate the trigger mechanism housing from the frame; the springs then drop directly into the OEM locations with no permanent modification required. Compatible with Glock 17 and Glock 19 models in Gen 1, Gen 2, Gen 3, and Gen 4 variants.