This + gpt = � - Ghost Inc Ultimate 3.5 Pound Trigger Connector Fits All Glock Models except 42 and 43

By itself, this connector will bring your factory Glock trigger pull down to 3.5 - 4 lbs. It's easy to install. Anyone can do it.

I decided to buy a Glock Performance Trigger, and the connector that it comes with can be swapped out with other connectors. The Ultimate brings it down to just under 3.5 lbs with proper lubrication. Very smooth and crisp. The design of the GPT doesn't allow the overtravel stop of other Ghost connectors to work so save a little money and just install this.