A while back there was a post pulling the trigger the there would be an audible click of unknown origin. The pistol fired as designed and there were no other issues.
Mine did that as well and I found the source of the click on mine.
I had installed the belt clip and found that the screw holding the clip was too tight. It was apparently impinging on the trigger bar. I loosened the belt clip screw and the click went away. I have since removed the belt clip and replaced the metal frame pin and screw with the original plastic frame pin - still no clicks.
ymmv
SteveB
Mine did that as well and I found the source of the click on mine.
I had installed the belt clip and found that the screw holding the clip was too tight. It was apparently impinging on the trigger bar. I loosened the belt clip screw and the click went away. I have since removed the belt clip and replaced the metal frame pin and screw with the original plastic frame pin - still no clicks.
ymmv
SteveB