I've had my shield now for one year lots of dry firing holstering and unholstering I dropped in an Apex Trigger Truglo tf-x sights love my pistol but it has a weird click a quarter of the way through the travel of engaging the safety... Does anybody have any suggestions on what would need to be replaced or gunsmith? I called Smith & Wesson and they had no idea and have never heard of a shield having this problem. When you put inward pressure on the safety while engaging to the safe position it creates a very tactile click a quarter of the way through the engagement and sometimes if I'm not paying close enough attention it feels as if the safety has been engaged. With talking 2 S&W customer service they said they would send out any replacement part to fix the problem but they did not know if it would be more than just the thumb safety lever itself or I could send it in for repairs I just don't want to be without it for the few weeks that it would take.