Plunger head

A plunger head is an internal part seen on all direct plunger blasters.

Details
It is the only part of the plunger that is only on a direct plunger and a motorized direct plunger. The plunger head is typically screwed on to the plunger rod and has an O-ring wrapped around it, the plunger head's purpose is to force air out. The force is greater than that of a reverse plunger, meaning better performance.

Modification
Because the plunger head damages itself and the plunger tube without an air restrictor, many modders pad the top of the head with foam, this prevents damage from being done.