The bottom line is, If you need a far more linear trigger with lower creep and General an even better and smoother trigger encounter, the binary trigger is unbeatable in that regard. The BFSIII B&T-C1 is explicitly made for the B&T APC9 and will help the shooter spot numerous rounds https://glock-binary-trigger68899.bloggosite.com/39672637/detailed-notes-on-binary-trigger-glock