Hey Dnk if they come apart you can get replacements! I had 1 break on the shot with the Exomax but it may not have been fully in place. Other than that they have held up pretty good. I wish they had an ACC type bolt. I shot ACC's with my compound for many years without any problems at all. I have some Easton Power Bolts to try. If they're as good as the ACC's carbon part is they should stay together just fine.