Does not fire - Apex Tactical Specialties Glock Gen 3-4 Action Enhancement Kit

The connector that was supplied with the kit did not look like the one pictured online. It did not say Apex like the one pictured. After installing the trigger the pistol would not fire. After taking the pistol apart numerous times, which is not easy when you cannot dry fire it to release the slide, I installed my stock connector and it finally fired. I then installed the Apex connector in another Glock pistol and it did not fire either. The trigger seems to work fine now but I am not confident enough to trust it in this pistol as I was intending to use it for bedside self defense. I should have just left the stock Glock trigger in it which I would trust with my life.