I have examine as being a destructive even though, the complete isn't really perfect for a $400 trigger and I feel it dependant on images. Then also some do complain they do not work correct - suspect it can be associated with non spec bolt carriers (plenty of AR's on https://trentontjynb.blogcudinti.com/34823947/helping-the-others-realize-the-advantages-of-rare-breed-trigger-review