4.1 Pounds per their website.I saw a video where a guy was getting around 2.75lb trigger pulls but he was using an aftermarket connector, striker spring, firing pin block spring, and trigger spring.
I believe dropping it in as it comes from Glock with the . Connector you can expect around a 4lb trigger pull.
One of the Glock reps said the minus connectors would lower it below the 4.1 pounds.