Yes,you will need to heat it and pull out the insert.Ideally,clamp the front portion of the broadhead in a vice,heat and try to pull with the pliers.Twist and pull as soon as it is ready.You can douse it with water as soon as the insert is out.As long as the bare metal edges don't turn blue from the heat,the temper will be fine.The vice is good because it gives a solid grip so you can pull as soon as the glue weakens.Heat will separate any glue.Just try to get it done as quickly as possible.There will be glue residue left inside that you should clean out with a narrow knife blade,rifle bore brush or whatever,before gluing in a new adapter.