Yep,go to their web site,or Keystone,Bass Pro,etc has them,the insert
for the crossbow arrows is 12.00 but I saw a post on another web
site where you could take old time pencil erasers and notch them and
it works slicker then wow!I have used this ol JoJann for a lot of years
and still does the job.A little hint take wax and rub it along the edge
of the clamp,and that way the glue will not stick to it,good luck!