I've study for a damaging while, the finish isn't really great for a $four hundred trigger and I feel it determined by images. Then also some do complain they don't work correct - suspect it's relevant to non spec bolt carriers (lots of AR's out there have versions, Rugers one https://rarebreedtriggers90123.blogdanica.com/34689039/not-known-details-about-rare-breed-forced-reset-trigger-for-sale