The Ghost Rocket 3.5lb connector is designed with an oversizeed over-travel stop tab that must be filed down to fit your particular Glock.
This "gunsmithing" allows you to set the break over-travel to your specifications. This part gives you more control over how the trigger feels. It does require that you file the tab down with a metal file.
However, it will allow you to customize your trigger and make your Glock exactly as you desire.
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