The Lantac Ultimate Spring Set (Lantac part no. 01-GP-4-USS) is a reduced-power spring kit built to bring a Glock 17 or 19 down to roughly a 4-pound trigger pull. Lantac designs the set to work across Glock Gen1 through Gen4 frames, so it’s a drop-in upgrade regardless of which generation pistol it’s going into. Lightening the trigger spring weight gives a shooter a crisper, more consistent pull without changing the trigger’s factory safety mechanisms. It’s a straightforward way to improve trigger feel on a carry or range Glock without replacing the whole trigger assembly.

Key Specifications

• Tuned to bring trigger pull down to approximately 4 pounds.
• Fits Glock 17 and 19 pistols.
• Compatible across Gen1 through Gen4 frames.
• Installs as a drop-in spring swap, without replacing the trigger assembly itself.

Frequently Asked Questions

Will this fit a Glock 19 Gen5? No, this set is built for Gen1 through Gen4 frames; Gen5 uses a different trigger spring geometry.

Does this change the trigger’s safety function? No, it only changes spring tension to lighten the pull; the factory trigger safety and disconnector still function normally.

Buy the Lantac Ultimate 4lb Trigger Spring Set

Get a lighter, crisper trigger pull with this spring set from Lantac USA in our Glock parts selection. Order it from our Lubbock, Texas gun shop for fast, direct shipping right to your door.