Yea I've watched all the videos, cz parts page states that assembly will only fit 2016 & older, cz rep said it should read 2016 & newer, my gun is a 2019 model, just wondered if I got right decocker or not, it works, drops to half cock but just doesn't feel right, maybe it's just the way the omega system is, don't know, first cz for me, thanks for links.