I've read through for a negative even though, the complete is not perfect for a $four hundred trigger and I feel it determined by pics. Then also some do complain they don't work proper - suspect it really is connected to non spec bolt carriers (lots of AR's out there https://auto-reset-trigger-rare-b02345.blogsmine.com/35155881/considerations-to-know-about-rare-breed-frt-15-trigger-for-sale