Great trigger - easily installed improperly. - Timney Triggers Alpha Competition Pistol Trigger

Purchased several of these. The trigger return spring on this product is easily installed improperly.

If you do so, your firearm's trigger won't reset, and you will have to push it back to reset. If it does that, remove your spring and install it the other way.

This trigger is one of the only real upgrades I've seen - other triggers all take you to the maximum performance of a glock trigger and no further shall any of them go.

The Timney isn't a glock trigger anymore - it replaces the entirety of the mechanism that runs the trigger function with completely dissimilar mechanicals. And you can tell.