How does the Selectable Trigger Functionality work on the Smart Point? Nailers? Support October 03, 2020 18:19 Smart Point? nailers come with Selectable Trigger System that allows for Sequential Fire or Bump Fire. See below for instructions on how to change between these two trigger systems. Related articles My pneumatic nailer / stapler will no longer drive the fastener completely; it seems to be losing power. Can this be repaired? How do I know what size air fitting or hose I need for my tool? The Bostitch model SX1838K advertises a Selectable Trigger System. What does this mean? Comments 0 comments Please sign in to leave a comment.