Make sure you run your safety tests!
This product was easy to install and definitely reduced the trigger pull. Unfortunately, it also made the trigger safety unreliable on my gun. Reseting the trigger by cycling the action would reset the trigger and trigger safety normally. If you partially depressed the trigger -- without releasing the striker -- and then let off the trigger, the trigger safety would not re-engage. In my opinion, this creates an unsafe pistol because it makes 1 of the 3 safeties unreliable. I will not even use this in my competition only guns for fear of an accidental discharge while holstering.
They mean, competition only!
The springs work as advertised to reduce trigger pull. In fact, I would describe the results as beautiful for a Glock! You do, however, need to heed their competition only warning! After installing, the springs would reset the trigger when dry fired + action cycled. The trigger safety, however, would not reset on its own if you initiated trigger pull and then let off. This could lead to an accidental discharge if you were to inadvertantly disengage the trigger safety then catch the trigger on somthing. E.g., on your shirt while holstering. Therefore, I'm only giving this 2 stars for function because, at least in my guns, it created an unsafe firearm and I value safety more than anything else.
