Missing screw for spool holder

Not sure if this is the right flair but I just got a new p1s and this screw for the spool holder seems to be missing. Is it in a bag somewhere or did mine just come without it? Do I even need to put the spool holder on if I have the AMS? Thanks!

Not sure if this is the right flair but I just got a new p1s and this screw for the spool holder seems to be missing. Is it in a bag somewhere or did mine just come without it? Do I even need to put the spool holder on if I have the AMS? Thanks!